Question 1

A histogram can be described as a type of
A)bar graph.
B)polygon.
C)frequency mode.
D)class interval.

Accepted Answer

A histogram is a type of bar graph that is used to display the distribution of a dataset. The bars are typically drawn adjacent to each other and have a width that represents the range of values in each interval, and the height represents the frequency or count of observations in that interval. Histograms are often used in statistics to visually examine the shape and spread of a distribution.

Question 2

A measure of _____ is simply a number describing a "typical score" around which other scores fall.
A)variability
B)central tendency
C)normality
D)cohesion

Accepted Answer

Central tendency measures, such as mean, median, and mode, provide a typical value around which other scores tend to cluster. Variability measures, on the other hand, describe how much scores deviate from the central tendency. Normality and cohesion are not relevant terms in this context.

Question 3

Measures of central tendency
A)present numbers in a pictorial format.
B)describe a "typical" score in a distribution.
C)allow one to generalize from small samples.
D)indicate how scores differ from each other.

Accepted Answer

Measures of central tendency, such as mean, median, and mode, describe a "typical" score in a distribution. They do not necessarily allow one to generalize from small samples or indicate how scores differ from each other. While some measures may be presented in a pictorial format, this is not a defining characteristic of measures of central tendency.

Question 4

A _____ is a graph of a frequency distribution in which the number of scores falling in each class is represented by points on a line.
A)scatter matrix
B)histogram
C)frequency polygon
D)correlation matrix

Accepted Answer

A frequency polygon is a graph of a frequency distribution in which the number of scores falling in each class is represented by points on a line. It is similar to a histogram, but instead of bars, points are connected by straight lines.

Question 5

Kayla wants to create an organized summary of the number of people interested in each of the fifteen new products her company has designed.She should construct a
A)frequency distribution.
B)range table.
C)variability matrix.
D)standard deviation scale.

Accepted Answer

A frequency distribution would be the best choice for summarizing the number of people interested in each product as it provides a clear count of the frequency of each response. A range table would only be appropriate if the data was continuous and could be grouped into ranges, while a variability matrix and standard deviation scale are more advanced statistical tools that are not necessary for this task.

Question 6

Carol is drawing a graph of a frequency distribution in which she places the number of scores falling in each class as points on a line.Carol is graphing a
A)scatter matrix.
B)histogram.
C)frequency polygon.
D)correlation matrix.

Accepted Answer

A frequency polygon is a graph that represents the frequency distribution of a set of data by connecting each point with a straight line. It is a better choice than a histogram when comparing two or more data sets. A scatter matrix and correlation matrix are used to display relationships between variables, while a histogram is used to show the distribution of a continuous variable.

Question 7

Abscissa is to ordinate as
A)vertical axis is to horizontal axis.
B)horizontal axis is to vertical axis.
C)measure of central tendency is to frequency distribution.
D)frequency distribution is to measure of central tendency.

Accepted Answer

An abscissa is the horizontal coordinate in a Cartesian coordinate system, while an ordinate is the vertical coordinate. Therefore, the relationship between abscissa and ordinate is the same as the relationship between the horizontal and vertical axes. Choice B states this relationship correctly.

Question 8

A single number that describes a "middle score" is a(n)
A)inferential statistic.
B)measure of central tendency.
C)z-score.
D)frequency distribution.

Accepted Answer

A measure of central tendency describes the typical or central value of a set of data. Examples include the mean, median, and mode. The term "middle score" suggests the median, which is the middle value when all the scores are arranged in order.

Question 9

A bar graph is to a _____ as dots connected by straight lines are to _____.
A)scatter diagram; histogram
B)frequency polygon; scatter diagram
C)histogram; frequency polygon
D)frequency; histogram

Accepted Answer

A bar graph is similar to a histogram, and dots connected by straight lines form a frequency polygon.

Question 10

If you add up all the scores and then divide by the number of scores, you arrive at the
A)mean.
B)median.
C)mode.
D)range.

Accepted Answer

The process described is how to find the mean of a set of data.

Question 11

The mean, median, and mode are
A)inferential statistics.
B)measures of central tendency.
C)measures of variability.
D)graphical statistics.

Accepted Answer

The mean, median, and mode are all measures of central tendency, as they are used to describe the typical or central value of a set of data.

Question 12

Sorting scores into classes is a necessary step in creating a
A)frequency distribution.
B)correlation.
C)scatter diagram.
D)variability plot.

Accepted Answer

Sorting scores into classes is the first step in creating a frequency distribution, which involves grouping scores into intervals or ranges and counting the number of scores that fall within each interval. This is an important first step in any statistical analysis as it helps to organize the data and identify patterns or trends within it.

Question 13

Vertical bars are used to indicate frequencies in a
A)frequency polygon.
B)scatter diagram.
C)normal distribution.
D)histogram.

Accepted Answer

Vertical bars are used to indicate frequencies in a histogram. A histogram is a type of graph that represents the frequency distribution of a data set, and it is constructed by drawing bars of equal width to represent the frequency of the observations in each interval or category on the horizontal axis.

Question 14

The mean, median, and _____ are measures of central tendency.
A)range
B)module
C)mode
D)standard deviation

Accepted Answer

The mean, median, and mode are all measures of central tendency. The range is a measure of dispersion and the standard deviation measures the amount of variation in a set of data. The module is not a statistical term.

Question 15

The propensity for a majority of scores to fall in the midrange of possible values is referred to as
A)central tendency.
B)inferential probability.
C)the causal correlational effect.
D)frequency distribution.

Accepted Answer

Central tendency refers to the tendency for most scores to fall in the middle or "central" part of the distribution. This is typically measured by mean, median, and mode.

Question 16

A _____ is made by labeling class intervals on the abscissa, frequencies on the ordinate, and then drawing bars for each class interval with the height of each bar being determined by the number of scores in each class.
A)scatter diagram
B)histogram
C)frequency polygon
D)normal curve

Accepted Answer

A histogram is a graph that displays the frequency distribution of a set of continuous data. The data is divided into class intervals and the height of each bar represents the frequency of data within that interval. The x-axis is labeled with the class intervals and the y-axis represents the frequencies.

Question 17

On a graph, the horizontal line or the X axis is called the _____, while the vertical line or Y axis is called the _____.
A)abscissa; ordinate
B)ordinate; abscissa
C)standard deviation; central tendency
D)central tendency; standard deviation

Accepted Answer

The abscissa is the X axis, and the ordinate is the Y axis. This terminology is commonly used in mathematics and statistics.

Question 18

Histograms and frequency polygons are visual representations of
A)frequency distributions.
B)nominal scales.
C)inferential statistics.
D)differential statistics.

Accepted Answer

Histograms and frequency polygons are both graphs used to display frequency distributions, which show how often each value or range of values occurs in a dataset. They are useful for visually summarizing and comparing data, and can provide insights into patterns and relationships that may not be obvious from raw data alone.

Question 19

Which is NOT a measure of central tendency?
A)mean
B)mode
C)range
D)median

Accepted Answer

Range is a measure of variability in a data set, not a measure of central tendency. The other options, mean, mode, and median, are all measures of central tendency.

Question 20

Professor Warren calculated the mean, median, and mode of the scores made on the midterm exam.These descriptive statistics are known as
A)inferential statistics.
B)the measures of central tendency.
C)the measures of variability.
D)graphical statistics.

Accepted Answer

The measures of central tendency refer to the mean, median, and mode which are used to describe the "center" or "typical" value of a dataset. Therefore, the correct answer is B.

Quiz 19: Appendix A: Behavioral Statistics

A histogram can be described as a type of

A measure of _____ is simply a number describing a "typical score" around which other scores fall.

Measures of central tendency

A _____ is a graph of a frequency distribution in which the number of scores falling in each class is represented by points on a line.

Kayla wants to create an organized summary of the number of people interested in each of the fifteen new products her company has designed.She should construct a

Carol is drawing a graph of a frequency distribution in which she places the number of scores falling in each class as points on a line.Carol is graphing a

Abscissa is to ordinate as

A single number that describes a "middle score" is a(n)

A bar graph is to a _ as dots connected by straight lines are to _.

If you add up all the scores and then divide by the number of scores, you arrive at the

The mean, median, and mode are

Sorting scores into classes is a necessary step in creating a

Vertical bars are used to indicate frequencies in a

The mean, median, and _____ are measures of central tendency.

The propensity for a majority of scores to fall in the midrange of possible values is referred to as

A _____ is made by labeling class intervals on the abscissa, frequencies on the ordinate, and then drawing bars for each class interval with the height of each bar being determined by the number of scores in each class.

On a graph, the horizontal line or the X axis is called the _, while the vertical line or Y axis is called the _.

Histograms and frequency polygons are visual representations of

Which is NOT a measure of central tendency?

Professor Warren calculated the mean, median, and mode of the scores made on the midterm exam.These descriptive statistics are known as