Question 1

What kind of frequency distribution graph shows the frequencies as bars that are separated by spaces?

Accepted Answer

A) A bar graph 
B) A histogram 
C) A polygon 
D) All of these 
A) A bar graph 
B) A histogram 
C) A polygon 
D) All of these

Question 2

If a set of scores is displayed in a frequency distribution polygon,what scale of measurement was used to measure the scores?

Accepted Answer

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

Question 3

In a frequency distribution graph,frequencies are presented on the ,and the scores (categories)are listed on the .

Accepted Answer

A) X axis; Y axis 
B) horizontal line; vertical line 
C) Y axis; X axis 
D) class interval; horizontal line 
A) X axis; Y axis 
B) horizontal line; vertical line 
C) Y axis; X axis 
D) class interval; horizontal line

Question 4

If a distribution with more than 15 or 20 scores is being organized in a frequency distribution table,then a grouped table should be used.

Accepted Answer

A) True 
 B)False

Question 5

A set of scores ranging from a high of 47 to a low of 6 is organized in a grouped frequency distribution table using an interval width of 5 points.If the distribution is shown in a graph,then a histogram or polygon should be used.

Accepted Answer

A) True 
 B)False

Question 6

If a set of exam scores forms a negatively skewed distribution,what can you conclude about the students' scores?

Accepted Answer

A) Most of the students had relatively high scores. 
B) Most of the students had relatively low scores. 
C) About 50% of the students had high scores and the rest had low scores. 
D) It is not possible to draw any conclusions about students' scores. 
A) Most of the students had relatively high scores. 
B) Most of the students had relatively low scores. 
C) About 50% of the students had high scores and the rest had low scores. 
D) It is not possible to draw any conclusions about students' scores.

Question 7

If a set of scores is displayed in a frequency distribution bar graph,what scale of measurement was used to measure the scores?

Accepted Answer

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

Question 8

A professor records the number of students who are absent each day for the semester.Because this is a discrete variable,a bar graph should be used to show the frequency distribution.

Accepted Answer

A) True 
 B)False

Question 9

What frequency distribution graph is appropriate for scores measured on a nominal scale?

Accepted Answer

A) Only a histogram 
B) Only a polygon 
C) Either a histogram or a polygon 
D) Only a bar graph 
A) Only a histogram 
B) Only a polygon 
C) Either a histogram or a polygon 
D) Only a bar graph

Question 10

It is customary to list the score categories in a frequency distribution from the highest down to the lowest.

Accepted Answer

A) True 
 B)False

Question 11

A set of scores ranges from a high of X = 96 to a low of X = 11.If these scores were placed in a grouped frequency distribution table,what is the best value for the interval width?

Accepted Answer

A) 5 points 
B) 8 points 
C) 9 points 
D) 10 points 
A) 5 points 
B) 8 points 
C) 9 points 
D) 10 points

Question 12

A group of quiz scores ranges from 3 to 10,but no student had a score of X = 5.If the scores are put in a frequency distribution table,X = 5 would not be listed in the X column.

Accepted Answer

A) True 
 B)False

Question 13

In a grouped frequency distribution,one interval is listed as 50-59.Assuming that the scores are measuring a continuous variable,what are the real limits for this interval?

Accepted Answer

A) 50 and 59 
B) 50.5 and 59.5 
C) 49.5 and 59.5 
D) 49.5 and 60.5 
A) 50 and 59 
B) 50.5 and 59.5 
C) 49.5 and 59.5 
D) 49.5 and 60.5

Question 14

A set of scores ranges from a high of X = 24 to a low of X = 5.If these scores were put in a frequency distribution table with an interval width of 2 points,which of the following would be the top interval in the table?

Accepted Answer

A) 4-5 
B) 23-24 
C) 24-25 
D) 22-24 
A) 4-5 
B) 23-24 
C) 24-25 
D) 22-24

Question 15

If a set of exam scores forms a symmetrical distribution,what can you conclude about the students scores?

Accepted Answer

A) Most of the students had relatively high scores. 
B) Most of the students had relatively low scores. 
C) About 50% of the students had high scores and the rest had low scores. 
D) It is not possible to draw any conclusions about students' scores. 
A) Most of the students had relatively high scores. 
B) Most of the students had relatively low scores. 
C) About 50% of the students had high scores and the rest had low scores. 
D) It is not possible to draw any conclusions about students' scores.

Question 16

If it is appropriate to present a distribution of scores in a polygon,then it would also be appropriate to present the scores in a bar graph.

Accepted Answer

A) True 
 B)False

Question 17

In a grouped frequency distribution table,the top value in each class interval should be a multiple of the interval width.

Accepted Answer

A) True 
 B)False

Question 18

In a positively skewed distribution,the scores pile up on the left side of the distribution and taper off to the right.

Accepted Answer

A) True 
 B)False

Question 19

In a distribution with positive skew,scores with the highest frequencies are _____.

Accepted Answer

A) on the right side of the distribution 
B) on the left side of the distribution 
C) in the middle of the distribution 
D) represented at two distinct peaks 
A) on the right side of the distribution 
B) on the left side of the distribution 
C) in the middle of the distribution 
D) represented at two distinct peaks

Question 20

A set of scores ranges from a high of X = 72 to a low of X = 28.If these scores were put in a grouped frequency distribution table,what would be the best choice for the interval width?

Accepted Answer

A) 2 points 
B) 5 points 
C) 7 points 
D) 10 points 
A) 2 points 
B) 5 points 
C) 7 points 
D) 10 points

What kind of frequency distribution graph shows the frequencies as bars that are separated by spaces?

If a set of scores is displayed in a frequency distribution polygon,what scale of measurement was used to measure the scores?

In a frequency distribution graph,frequencies are presented on the ,and the scores (categories)are listed on the .

If a distribution with more than 15 or 20 scores is being organized in a frequency distribution table,then a grouped table should be used.

A set of scores ranging from a high of 47 to a low of 6 is organized in a grouped frequency distribution table using an interval width of 5 points.If the distribution is shown in a graph,then a histogram or polygon should be used.

If a set of exam scores forms a negatively skewed distribution,what can you conclude about the students' scores?

If a set of scores is displayed in a frequency distribution bar graph,what scale of measurement was used to measure the scores?

A professor records the number of students who are absent each day for the semester.Because this is a discrete variable,a bar graph should be used to show the frequency distribution.

What frequency distribution graph is appropriate for scores measured on a nominal scale?

It is customary to list the score categories in a frequency distribution from the highest down to the lowest.

A set of scores ranges from a high of X = 96 to a low of X = 11.If these scores were placed in a grouped frequency distribution table,what is the best value for the interval width?

A group of quiz scores ranges from 3 to 10,but no student had a score of X = 5.If the scores are put in a frequency distribution table,X = 5 would not be listed in the X column.

In a grouped frequency distribution,one interval is listed as 50-59.Assuming that the scores are measuring a continuous variable,what are the real limits for this interval?

A set of scores ranges from a high of X = 24 to a low of X = 5.If these scores were put in a frequency distribution table with an interval width of 2 points,which of the following would be the top interval in the table?

If a set of exam scores forms a symmetrical distribution,what can you conclude about the students scores?

If it is appropriate to present a distribution of scores in a polygon,then it would also be appropriate to present the scores in a bar graph.

In a grouped frequency distribution table,the top value in each class interval should be a multiple of the interval width.

In a positively skewed distribution,the scores pile up on the left side of the distribution and taper off to the right.

In a distribution with positive skew,scores with the highest frequencies are _____.

A set of scores ranges from a high of X = 72 to a low of X = 28.If these scores were put in a grouped frequency distribution table,what would be the best choice for the interval width?

Introduction to Statistics

Measures of Central Tendency

Measures of Variability

Z-Scores

Probability

Probability and Samples:

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures and Two-Factor Anova

Correlation and Regression

Chi-Square Tests

Filters

Exam 2: Frequency Distributions

What kind of frequency distribution graph shows the frequencies as bars that are separated by spaces?

If a set of scores is displayed in a frequency distribution polygon,what scale of measurement was used to measure the scores?

In a frequency distribution graph,frequencies are presented on the ,and the scores (categories)are listed on the .

If a distribution with more than 15 or 20 scores is being organized in a frequency distribution table,then a grouped table should be used.

A set of scores ranging from a high of 47 to a low of 6 is organized in a grouped frequency distribution table using an interval width of 5 points.If the distribution is shown in a graph,then a histogram or polygon should be used.

If a set of exam scores forms a negatively skewed distribution,what can you conclude about the students' scores?

If a set of scores is displayed in a frequency distribution bar graph,what scale of measurement was used to measure the scores?

A professor records the number of students who are absent each day for the semester.Because this is a discrete variable,a bar graph should be used to show the frequency distribution.

What frequency distribution graph is appropriate for scores measured on a nominal scale?

It is customary to list the score categories in a frequency distribution from the highest down to the lowest.

A set of scores ranges from a high of X = 96 to a low of X = 11.If these scores were placed in a grouped frequency distribution table,what is the best value for the interval width?

A group of quiz scores ranges from 3 to 10,but no student had a score of X = 5.If the scores are put in a frequency distribution table,X = 5 would not be listed in the X column.

In a grouped frequency distribution,one interval is listed as 50-59.Assuming that the scores are measuring a continuous variable,what are the real limits for this interval?

A set of scores ranges from a high of X = 24 to a low of X = 5.If these scores were put in a frequency distribution table with an interval width of 2 points,which of the following would be the top interval in the table?

If a set of exam scores forms a symmetrical distribution,what can you conclude about the students scores?

If it is appropriate to present a distribution of scores in a polygon,then it would also be appropriate to present the scores in a bar graph.

In a grouped frequency distribution table,the top value in each class interval should be a multiple of the interval width.

In a positively skewed distribution,the scores pile up on the left side of the distribution and taper off to the right.

In a distribution with positive skew,scores with the highest frequencies are _____.

A set of scores ranges from a high of X = 72 to a low of X = 28.If these scores were put in a grouped frequency distribution table,what would be the best choice for the interval width?

Introduction to Statistics

Measures of Central Tendency

Measures of Variability

Z-Scores

Probability

Probability and Samples:

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures and Two-Factor Anova

Correlation and Regression

Chi-Square Tests

Filters