Deck 2: Frequency Distributions: Tabulating and Displaying Data

Question 1

A major purpose of constructing a frequency distribution with sample data is to:

A) Estimate a population parameter
B) Test a research hypothesis
C) Get an organized view of an entire set of scores
D) Get experience with statistical software

Answer 1

C

Question 2

In a frequency distribution, the two key informational components are:

A) Score values (X), frequencies (f)
B) A horizontal (X) axis, a vertical (Y) axis
C) Frequencies (f), percentages (%)
D) Participant ID number (id), score values (X)

Answer 2

A

Question 3

In a frequency distribution, which of the following is true?

A) Σ N = %
B) Σ N = f
C) Σ f = %
D) Σ f = N

Answer 3

D

Question 4

In the equation Σ % = 100.0, the symbol Σ signifies:

A) A percentage
B) The sum of
C) A data value
D) A frequency

Question 5

In a frequency distribution, percentages are sometimes called:

A) Proportions
B) Relative proportions
C) Relative frequencies
D) Cumulative proportions

Question 6

Data for which of the following variables is most likely to be presented in a grouped frequency distribution?

A) Nursing specialty area
B) Daily cholesterol intake
C) Number of abortions
D) Number of pets owned

Question 7

The level of measurement for data appropriately presented in a bar graph is:

A) Interval or ratio
B) Nominal only
C) Interval only
D) Nominal or ordinal

Question 8

In a frequency distribution graph, frequencies are typically presented on the ____ and data values are presented on the ____________.

A) Y axis, X axis
B) X axis, Y axis
C) f axis, N axis
D) N axis, f axis

Question 9

Which of the following sets of data is not unimodal?

A) 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 4, 5, 5, 5, 5, 5, 5, 5, 5
B) 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4
C) 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 4, 5
D) 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 5, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9

Question 10

Which of the following variables is most likely to be negatively skewed in a general population?

A) Number of times arrested
B) Age at retirement
C) Number of times married
D) Age at birth

Question 11

A normal distribution is not:

A) Skewed
B) Leptokurtic
C) Platykurtic
D) All of the above

Question 12

A wild code is:

A) A value that is impossible given the coding scheme
B) An outlier or high value
C) A code for which there is a very low frequency
D) A code for which there is a very high frequency

Question 13

The next eight questions pertain to the following table (Table 2):

-In Table 2, the variable is _______ and the measurement level is _________.

A) Discrete, interval
B) Discrete, ratio
C) Continuous, interval
D) Continuous, ratio

Question 14

The next eight questions pertain to the following table (Table 2):

-Table 2 is an example of a:

A) Frequency distribution
B) Grouped frequency distribution
C) Class interval
D) Data matrix

Question 15

The next eight questions pertain to the following table (Table 2):

-In Table 2, the value of N is:

A) 24
B) 100.0
C) 215
D) 7

Question 16

The next eight questions pertain to the following table (Table 2):

-In Table 2, the cumulative relative frequency for five or fewer pregnancies is:

A) 210
B) 199
C) 92.5
D) 97.6

Question 17

The next eight questions pertain to the following table (Table 2):

-The best way to graph information in Table 2 would be to construct:

A) A histogram
B) A pie chart
C) A bar graph
D) Either a pie chart or a bar graph

Question 18

The next eight questions pertain to the following table (Table 2):

-In Table 2, the distribution of data would be described as:

A) Symmetric
B) Positively skewed
C) Negatively skewed
D) It cannot be determined.

Question 19

The next eight questions pertain to the following table (Table 2):

-In Table 2, the distribution of data would be described as:

A) Unimodal
B) Bimodal
C) Multimodal
D) It cannot be determined.

Question 20

The next eight questions pertain to the following table (Table 2):

-In Table 2, the most likely number to be an outlier is:

A) 0
B) 1
C) 7
D) 24