Deck 2: Organizing and Graphing Data

Question 1

Use the following to answer questions :
The following table gives the frequency distribution of the highest degrees held by 25 professionals.

The percentage of persons with a Bachelor's degree as the highest degree is:

Answer 1

48%

Question 2

In a frequency distribution,the classes should always:

A)be overlapping
B)have the same frequency
C)have a width of 10
D)be non-overlapping

Answer 2

be non-overlapping

Question 3

The procedure for obtaining the relative frequency of a class is to:

A)divide the frequency of that class by the sum of all frequencies
B)multiply the frequency of that class by 100
C)divide the frequency of that class by 100
D)divide the sum of all frequencies by the frequency of that class

Answer 3

divide the frequency of that class by the sum of all frequencies

Question 4

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The following table gives the frequency distribution of opinions of 50 persons in regard to an issue.

The percentage of persons who are either against this issue or have no opinion is:

Question 5

When preparing a frequency distribution,the lower limit of the first class should always be:

A)a number that is greater than the smallest value in the data set
B)equal to 10
C)a number that is less than or equal to the smallest value in the data set
D)equal to zero

Question 6

A symmetric distribution curve:

A)has a longer tail on the right side
B)has a longer tail on the left side
C)is identical on both sides of the mean
D)is triangular in shape

Question 7

The number of classes in a frequency distribution depends on the size of the data set.In general,the:

A)larger the data set,the larger the number of classes
B)larger the data set,the smaller the number of classes
C)number of classes should be equal to the number of values in the data set divided by 5
D)smaller the data set,the larger the number of classes

Question 8

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The following table gives the frequency distribution of the highest degrees held by 25 professionals.

The percentage of persons who do not hold a Doctorate is:

Question 9

Use the following to answer questions :
The following table gives the frequency distribution of the highest degrees held by 25 professionals.

The percentage of persons who hold a Doctorate is:

Question 10

We obtain the percentage of a category by:

A)multiplying the frequency of that category by 100
B)multiplying the relative frequency of that category by 100
C)dividing the frequency of that category by 100
D)dividing the sum of all frequencies by the frequency of that category

Question 11

A distribution curve that is right-skewed has:

A)both tails of the same length
B)a longer tail on the left side
C)a shorter tail on the right side
D)a longer tail on the right side

Question 12

Raw data are the data that:

A)are presented in the form of a frequency table
B)give information on each individual sample member separately
C)are arranged in increasing order
D)are arranged in a random order

Question 13

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The following table gives the frequency distribution of the highest degrees held by 25 professionals.

The number of persons with a Master's degree as their highest degree is:

Question 14

Use the following to answer questions :
The following table gives the frequency distribution of opinions of 50 persons in regard to an issue.

The percentage of persons who are either in favor of this issue or have no opinion is:

Question 15

The procedure for obtaining the midpoint of a class is to:

A)add the lower limit to the upper limit of the previous class
B)subtract the lower limit from the upper limit
C)multiply the sum of the two class limits by 2
D)divide the sum of the two class limits by 2

Question 16

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The following table gives the frequency distribution of opinions of 50 persons in regard to an issue.

The sample size is:

Question 17

We obtain the relative frequency of a category by:

A)dividing the frequency of that category by the sum of all frequencies
B)multiplying the frequency of that category by 100
C)dividing the frequency of that category by 100
D)dividing the sum of all frequencies by the frequency of that category

Question 18

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The following table gives the frequency distribution of opinions of 50 persons in regard to an issue.

The percentage of persons who have no opinion is:

Question 19

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The following table gives the frequency distribution of opinions of 50 persons in regard to an issue.

The relative frequency,expressed to two decimal places,of the "Against" category is:

Question 20

Use the following to answer questions :
The following table gives the frequency distribution of the highest degrees held by 25 professionals.

The number of persons who possess a Doctorate is:

Question 21

The procedure for obtaining the percentage for a class is to:

A)multiply the frequency of that class by 100
B)multiply the relative frequency of that class by 100
C)divide the relative frequency of that class by 100
D)divide the sum of all frequencies by 100

Question 22

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The number of classes in this frequency table is:

Question 23

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The upper limit of the fourth class is:

Question 24

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The lower boundary of the first class is:

Question 25

A rectangular histogram has:

A)a longer tail on the right side
B)a longer tail on the left side
C)shorter tails on both sides
D)the same frequency for each class

Question 26

In a frequency histogram,the frequency of a class is the:

A)height of the corresponding bar
B)width of the corresponding bar
C)height multiplied by the width of the corresponding bar
D)height divided by the width of the corresponding bar

Question 27

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The percentage of students who scored 80 or less on the test,rounded to two decimal places,is:

Question 28

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The width of each class in this frequency table is:

Question 29

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The midpoint of the fourth class is:

Question 30

In a frequency distribution,the correct notation for the sum of the frequencies is:

A)
B)
C)
D)

Question 31

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The relative frequency of the second class,rounded to three decimal places,is:

Question 32

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The lower limit of the fourth class is:

Question 33

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The number of classes in this frequency table is:

Question 34

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The midpoint of the second class is:

Question 35

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The lower boundary of the fifth class is:

Question 36

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The upper boundary of the third class is:

Question 37

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The width of each class in this frequency table is:

Question 38

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The upper boundary of the fourth class is:

Question 39

We can construct a frequency histogram for:

A)qualitative data only
B)any kind of data
C)qualitative and quantitative data
D)continuous data

Question 40

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The following table gives the frequency distribution of test scores for a math class of 30 students.

The sample size is:

Question 41

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The upper limit of the second class is:

Question 42

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The lower limit of the third class is:

Question 43

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The following table gives the frequency distribution of the number of rooms for a sample of 100 houses.

The number of houses that contain four or five rooms is:

Question 44

We construct an ogive to graph a:

A)frequency distribution
B)cumulative frequency distribution
C)relative frequency distribution
D)stem-and-leaf display

Question 45

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The following table gives the frequency distribution of the number of telephones owned by a sample of 50 households selected from a city.

The number of households which own more than one telephone is:

Question 46

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The following table gives the frequency distribution of the number of rooms for a sample of 100 houses.

The relative frequency of the fourth class,rounded to two decimal places,is:

Question 47

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The following table gives the frequency distribution of the number of telephones owned by a sample of 50 households selected from a city.

The percentage of households which do not own a telephone is:

Question 48

The graph of a cumulative frequency distribution is a(n):

A)frequency histogram
B)stem-and-leaf display
C)line graph
D)ogive

Question 49

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The following table gives the frequency distribution of the number of rooms for a sample of 100 houses.

The relative frequency of the fifth class,rounded to two decimal places,is:

Question 50

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The following table gives the frequency distribution of the number of rooms for a sample of 100 houses.

The number of classes for this frequency distribution table is:

Question 51

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The sample size is:

Question 52

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The following table gives the frequency distribution of the number of telephones owned by a sample of 50 households selected from a city.

The percentage of households which own three or more telephones is:

Question 53

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The following table gives the frequency distribution of the number of telephones owned by a sample of 50 households selected from a city.

The number of classes for this frequency distribution table is::

Question 54

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The following table gives the frequency distribution of the number of rooms for a sample of 100 houses.

The percentage of houses that have three or fewer rooms is:

Question 55

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The following table gives the frequency distribution of the number of telephones owned by a sample of 50 households selected from a city.

The number of households which own one or two telephones is:

Question 56

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The percentage of families who paid a rent of $500 or less per month,rounded to one decimal place,is:

Question 57

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The following table gives the frequency distribution of rents paid per month by 500 families selected from a city.

The relative frequency of the sixth class,rounded to three decimal places,is:

Question 58

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The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.

The cumulative relative frequency of the fourth class,rounded to three decimal places,is:

Question 59

Use the following to answer questions :
The following table gives the frequency distribution of the number of telephones owned by a sample of 50 households selected from a city.

The relative frequency of the second class,rounded to two decimal places,is:

Question 60

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The following table gives the frequency distribution of the number of rooms for a sample of 100 houses.

The percentage of houses that contain five or more rooms is:

Question 61

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The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.

The number of families with an income of $85,000 or more is:

Question 62

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

The percentage of persons who commute for less than 50 minutes,rounded to two decimal places,is:

Question 63

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The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.

The sample size is:

Question 64

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The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.

The number of families with an income of $40,000 or less is:

Question 65

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

Fifteen programmers were asked what computer language was used in their first programming class.The raw data appears below:
The percentage of people,rounded to two decimal places,who did not answer "Fortran" is:

Question 66

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

For the observation 4,the stem is:

Question 67

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A highway patrolman records the following speeds (in mph)for 25 cars that pass through his radar within a five-minute interval.Here is the histogram of that data:
How many observations fall in the fourth interval?

Question 68

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The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.

The percentage of families with an income of less than $55,000,rounded to one decimal place,is:

Question 69

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

For the observation 34,the leaf is:

Question 70

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The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.

The cumulative percentage for the second class,rounded to one decimal place,is:

Question 71

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The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars)for a sample of 200 families selected from a city.

The percentage of families with an income of $70,000 or more,rounded to one decimal place,is:

Question 72

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

You ask 27 people what kind of pet they own.Seven people have dogs,five have cats,three have birds,and the remainder have no pets.The relative frequency of dog owners,rounded to three decimal places,is:

Question 73

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

In a game of four-handed Hearts,all 52 cards of a standard deck are dealt,so that each player starts each round with 13 cards in a hand.Suppose player A's hand has three clubs,six diamonds,two hearts,and two spades.What is the relative frequency of spades,rounded to two decimal places,dealt to player A?

Question 74

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

The number of persons who commute for 20 or more minutes is:

Question 75

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

The cumulative relative frequency of the fourth class,rounded to four decimal places,is:

Question 76

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

The percentage of persons who commute for less than 30 minutes,rounded to two decimal places,is:

Question 77

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

The percentage of persons who commute for 40 or more minutes,rounded to two decimal places,is:

Question 78

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A highway patrolman records the following speeds (in mph)for 25 cars that pass through his radar within a five-minute interval.Here is the histogram of that data:
The relative frequency of drivers whose speed is less than 55 mph,rounded to two decimal places,is?

Question 79

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A highway patrolman records the following speeds (in mph)for 25 cars that pass through his radar within a five-minute interval.Here is the histogram of that data:
What is the width of each class?

Question 80

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The following table gives the cumulative frequency distribution of the commuting time (in minutes)from home to work for a sample of 400 persons selected from a city.

The sample size is: