Question 1

In statistical notation f stands for the

Accepted Answer

A) number of times a given score occurs in a sample. 
B) total quantity numbers in a set of numbers. 
C) relative frequency of a given score. 
D) cumulative frequency of a given score. 
A) number of times a given score occurs in a sample. 
B) total quantity numbers in a set of numbers. 
C) relative frequency of a given score. 
D) cumulative frequency of a given score. A

Question 2

A grouped frequency distribution is used when

Accepted Answer

A) there are too many different scores to produce an efficient simple frequency table. 
B) there are too many scores to produce an efficient simple frequency table. 
C) one wants more detailed information about frequencies than one can get from a simple frequency table. 
D) there are about 10 rows in a simple frequency table. 
A) there are too many different scores to produce an efficient simple frequency table. 
B) there are too many scores to produce an efficient simple frequency table. 
C) one wants more detailed information about frequencies than one can get from a simple frequency table. 
D) there are about 10 rows in a simple frequency table. A

Question 3

In a cumulative frequency distribution created from the following simple frequency distribution,the score "7" would have a cumulative frequency equal to

Accepted Answer

A) 3 
B) 28 
C) 84 
D) N 
A) 3 
B) 28 
C) 84 
D) N D

Question 4

The distinguishing characteristic of an idealized bimodal distribution is that

Accepted Answer

A) all the scores are the same. 
B) all the frequencies are the same. 
C) two scores have the same and the highest frequency. 
D) it is always symmetrical. 
A) all the scores are the same. 
B) all the frequencies are the same. 
C) two scores have the same and the highest frequency. 
D) it is always symmetrical.

Question 5

What is the cumulative frequency for the score "7" in the following distribution?

Accepted Answer

A) 5 
B) 10 
C) 18 
D) 0.22 
A) 5 
B) 10 
C) 18 
D) 0.22

Question 6

In a simple frequency distribution constructed from the data 16,16,17,14,19,19,20,20,21,21,16,17,14,the score "16" would have a cumulative frequency of

Accepted Answer

A) 3 
B) 5 
C) 13 
D) 48 
A) 3 
B) 5 
C) 13 
D) 48

Question 7

In a frequency polygon constructed from the frequency distribution what two scores would be included with a plotted value of zero?

Accepted Answer

A)  10 and 11 
B)  10.5 and 14.5 
C)  10 and 15 
D)  15 and 16 
A)  10 and 11 
B)  10.5 and 14.5 
C)  10 and 15 
D)  15 and 16

Question 8

An advantage of relative frequency over simple frequency is that

Accepted Answer

A) simple frequency is more complicated than relative frequency. 
B) simple frequency is often easier to interpret than relative frequency. 
C) simple frequency provides the proportions of different scores. 
D) relative frequency is often easier to interpret than simple frequency. 
A) simple frequency is more complicated than relative frequency. 
B) simple frequency is often easier to interpret than relative frequency. 
C) simple frequency provides the proportions of different scores. 
D) relative frequency is often easier to interpret than simple frequency.

Question 9

In terms of skewness,the normal bell-shaped curve is

Accepted Answer

A) positively skewed. 
B) negatively skewed. 
C) not skewed at all. 
D) rectangular. 
A) positively skewed. 
B) negatively skewed. 
C) not skewed at all. 
D) rectangular.

Question 10

Which graphing techniques are appropriate for interval and ratio data?

Accepted Answer

A) histograms and frequency polygons 
B) bar graphs and frequency polygons 
C) bar graphs and histograms 
D) bar graphs,histograms,and frequency polygons 
A) histograms and frequency polygons 
B) bar graphs and frequency polygons 
C) bar graphs and histograms 
D) bar graphs,histograms,and frequency polygons

Question 11

A distribution that is symmetrical,has as its middle score the score with the highest frequency,and has decreasing frequencies as scores are further from the middle score is called a(n)_____ distribution.

Accepted Answer

A) bimodal 
B) overlapping 
C) skewed 
D) normal 
A) bimodal 
B) overlapping 
C) skewed 
D) normal

Question 12

In the following frequency distribution table,what is the error?

Accepted Answer

A) The frequency of the score of 3 is incorrect. 
B) The rel f for the score of 3 is incorrect. 
C) The cf for the score of 3 is incorrect. 
D) There are no errors. 
A) The frequency of the score of 3 is incorrect. 
B) The rel f for the score of 3 is incorrect. 
C) The cf for the score of 3 is incorrect. 
D) There are no errors.

Question 13

A graph of a frequency distribution shows the frequencies on the

Accepted Answer

A) X axis. 
B) Y axis. 
C) top of the graph. 
D) bottom of the graph. 
A) X axis. 
B) Y axis. 
C) top of the graph. 
D) bottom of the graph.

Question 14

In statistical notation N stands for the

Accepted Answer

A) number of times a given score occurs in a sample. 
B) total number of scores in a set of data. 
C) relative frequency of a particular score. 
D) cumulative frequency of a particular score. 
A) number of times a given score occurs in a sample. 
B) total number of scores in a set of data. 
C) relative frequency of a particular score. 
D) cumulative frequency of a particular score.

Question 15

The cf for the highest score in a distribution should equal

Accepted Answer

A) N. 
B) its percentile rank. 
C) ƒ 
D) the highest score. 
A) N. 
B) its percentile rank. 
C) ƒ 
D) the highest score.

Question 16

In a grouped frequency distribution different scores are combined to form small groups

Accepted Answer

A) according to their frequencies. 
B) according to their size. 
C) but the f,rel.f,or cf is still reported for each score. 
D) and the total f,rel.f,or cf is reported for each group. 
A) according to their frequencies. 
B) according to their size. 
C) but the f,rel.f,or cf is still reported for each score. 
D) and the total f,rel.f,or cf is reported for each group.

Question 17

The distribution of weights of newborn infants in the American population is not symmetrical.Most weights are bunched together towards the upper end of the distribution.As weights decrease,there are fewer and fewer newborns with these weights.The shape of the graph produced by this distribution would be (Hint: Drawing a picture of the distribution may be helpful. )

Accepted Answer

A) a normal bell-shaped curve. 
B) negatively skewed. 
C) positively skewed. 
D) mesokurtic. 
A) a normal bell-shaped curve. 
B) negatively skewed. 
C) positively skewed. 
D) mesokurtic.

Question 18

The distribution of salaries in the American population is not symmetrical.Most salaries are bunched together at the lower end of the distribution.As salaries increase,there are fewer and fewer people with these salaries.The shape of the graph produced by this distribution would be (Hint: Drawing a picture of the distribution may be helpful. )

Accepted Answer

A) a normal bell-shaped curve. 
B) negatively skewed. 
C) positively skewed. 
D) mesokurtic. 
A) a normal bell-shaped curve. 
B) negatively skewed. 
C) positively skewed. 
D) mesokurtic.

Question 19

What is the relative frequency for the score of 14 in the following simple frequency distribution?

Accepted Answer

A) 0.12 
B) 0.13 
C) 0.16 
D) 0.20 
A) 0.12 
B) 0.13 
C) 0.16 
D) 0.20

Question 20

The distinguishing characteristic of a rectangular distribution is that

Accepted Answer

A) all the scores are the same. 
B) all the frequencies are the same. 
C) two scores have the same and the highest frequency. 
D) it has a high peak in the middle. 
A) all the scores are the same. 
B) all the frequencies are the same. 
C) two scores have the same and the highest frequency. 
D) it has a high peak in the middle.

In statistical notation f stands for the

A grouped frequency distribution is used when

In a cumulative frequency distribution created from the following simple frequency distribution,the score "7" would have a cumulative frequency equal to

The distinguishing characteristic of an idealized bimodal distribution is that

What is the cumulative frequency for the score "7" in the following distribution?

In a simple frequency distribution constructed from the data 16,16,17,14,19,19,20,20,21,21,16,17,14,the score "16" would have a cumulative frequency of

In a frequency polygon constructed from the frequency distribution what two scores would be included with a plotted value of zero?

An advantage of relative frequency over simple frequency is that

In terms of skewness,the normal bell-shaped curve is

Which graphing techniques are appropriate for interval and ratio data?

A distribution that is symmetrical,has as its middle score the score with the highest frequency,and has decreasing frequencies as scores are further from the middle score is called a(n)_____ distribution.

In the following frequency distribution table,what is the error?

A graph of a frequency distribution shows the frequencies on the

In statistical notation N stands for the

The cf for the highest score in a distribution should equal

In a grouped frequency distribution different scores are combined to form small groups

What is the relative frequency for the score of 14 in the following simple frequency distribution?

The distinguishing characteristic of a rectangular distribution is that

Introduction to Statistics

Statistics and the Research Process

Measures of Central Tendency;the Mean, median, and Mode

Measures of Variability: Range, variance, and Standard Deviation

Z-Scores and the Normal Curve

The Correlation Coefficient

Linear Regression

Using Probability to Make Decisions About Data

Introduction to Hypothesis Testing

Performing the One-Sample T-Test and Testing Correlation Coefficients

The Two-Sample T-Test

The One-Way Analysis of Variance

The Two-Way Analysis of Variance

Chi Square and Other Nonparametric Procedures

Filters

Exam 3: Frequency Distributions and Percentiles

In statistical notation f stands for the

A grouped frequency distribution is used when

In a cumulative frequency distribution created from the following simple frequency distribution,the score "7" would have a cumulative frequency equal to

The distinguishing characteristic of an idealized bimodal distribution is that

What is the cumulative frequency for the score "7" in the following distribution?

In a simple frequency distribution constructed from the data 16,16,17,14,19,19,20,20,21,21,16,17,14,the score "16" would have a cumulative frequency of

In a frequency polygon constructed from the frequency distribution what two scores would be included with a plotted value of zero?

An advantage of relative frequency over simple frequency is that

In terms of skewness,the normal bell-shaped curve is

Which graphing techniques are appropriate for interval and ratio data?

A distribution that is symmetrical,has as its middle score the score with the highest frequency,and has decreasing frequencies as scores are further from the middle score is called a(n)_____ distribution.

In the following frequency distribution table,what is the error?

A graph of a frequency distribution shows the frequencies on the

In statistical notation N stands for the

The cf for the highest score in a distribution should equal

In a grouped frequency distribution different scores are combined to form small groups

What is the relative frequency for the score of 14 in the following simple frequency distribution?

The distinguishing characteristic of a rectangular distribution is that

Introduction to Statistics

Statistics and the Research Process

Measures of Central Tendency;the Mean, median, and Mode

Measures of Variability: Range, variance, and Standard Deviation

Z-Scores and the Normal Curve

The Correlation Coefficient

Linear Regression

Using Probability to Make Decisions About Data

Introduction to Hypothesis Testing

Performing the One-Sample T-Test and Testing Correlation Coefficients

The Two-Sample T-Test

The One-Way Analysis of Variance

The Two-Way Analysis of Variance

Chi Square and Other Nonparametric Procedures

Filters