For the distribution in the following table,what is the 90th percentile?? \[\begin{array} { l c } X & c \% \\ 30 - 34 & 100 \% \\ 25 - 29 & 90 \% \\ 20 - 24 & 60 \% \\ 15 - 19 & 20 \% \\ \hline \end{array}\]

A) X = 24.5? B) ?X = 25 C) ?X = 29 D) ?X = 29.5 A) X = 24.5? B) ?X = 25 C) ?X = 29 D) ?X = 29.5

For the distribution in the following table,what is the 90th percentile? \[\begin{array} { c c } \mathrm { X } & \mathrm { c } \% \\ 9 & 100 \% \\ 8 & 80 \% \\ 7 & 50 \% \\ 6 & 25 \% \\ \hline \end{array}\]

A) X = 9.5? B) ?X = 9 C) ?X = 8.5 D) ?X = 8 A) X = 9.5? B) ?X = 9 C) ?X = 8.5 D) ?X = 8

For the following distribution,how many people had scores greater than X = 14?? \[\begin{array} { l l } \mathrm { X } & \mathrm { f } \\ 20 - 25 & 2 \\ 15 - 19 & 5 \\ 10 - 14 & 4 \\ 5 - 9 & 1 \\ \hline \end{array}\]

A) ?5 B) ?7 C) ?10 D) ?11 A) ?5 B) ?7 C) ?10 D) ?11

For the distribution in the following table,what is the percentile rank for X = 8.5?? \[\begin{array} { l c } \mathrm { X } & \mathrm { c } \% \\ 9 & 100 \% \\ 8 & 80 \% \\ 7 & 50 \% \\ 6 & 25 \% \\ \hline \end{array}\]

A) X = 90%? B) ?X = 80% C) ?X = 65% D) ?X = 50% A) X = 90%? B) ?X = 80% C) ?X = 65% D) ?X = 50%

Exam 2: Frequency Distributions

A researcher records the number of traffic tickets issued in each county along the New York State thruway.If the results are presented in a frequency distribution graph,what kind of graph should be used?

Free

(Multiple Choice)

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Question 1

Correct Answer:

Verified

A

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

Free

(Multiple Choice)

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Question 2

Correct Answer:

Verified

C

For the distribution in the following table,the 90th percentile is X = 27.5.? \% 25-29 100\% 20-24 80\% 15-19 20\%

Free

(True/False)

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Question 3

Correct Answer:

Verified

False

The students in a psychology class seemed to think that the midterm exam was very easy.If they are correct,what is the most likely shape for the distribution of exam scores?

(Multiple Choice)

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Question 4

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 of this interval?

(Multiple Choice)

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Question 5

A set of scores ranges from X = 18 to X= 91.If the scores are put in a grouped frequency distribution table with an interval width of 10 points,the top interval would be 91-100.

(True/False)

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Question 6

For the distribution in the following table,what is the 90^th percentile?? X c\% 30-34 100\% 25-29 90\% 20-24 60\% 15-19 20\%

(Multiple Choice)

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Question 7

For the distribution in the following table,what is the 90^th percentile? \% 9 100\% 8 80\% 7 50\% 6 25\%

(Multiple Choice)

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Question 8

Figure 2.1 -What scale of measurement was used to measure the scores in the distribution shown in the accompanying graph,Figure 2.1?

(Multiple Choice)

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Question 9

For the following distribution,how many people had scores greater than X = 14?? 20-25 2 15-19 5 10-14 4 5-9 1

(Multiple Choice)

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Question 10

For the distribution in the following table,what is the percentile rank for X = 8.5?? \% 9 100\% 8 80\% 7 50\% 6 25\%

(Multiple Choice)

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Question 11

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

(True/False)

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Question 12

In a grouped frequency distribution table,one interval is identified as 30-34.This interval has a width of 5 points.

(True/False)

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Question 13

Briefly explain what information is available in a regular frequency distribution table that is not available in a grouped table.

(Essay)

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Question 14

8 314 7 945 6 7042 5 68 4 14 Figure 2-3 -For the scores shown in the accompanying stem and leaf display,Figure 2-3,what is the highest score in the distribution??

(Multiple Choice)

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Question 15

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

(True/False)

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Question 16

For the following scores: a. Construct a frequency distribution table. b. Sketch a histogram of the frequency distribution.6, 4, 3, 5, 4, 2, 45, 4, 6, 1, 4, 5, 2

(Essay)

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Question 17

What kind of frequency distribution graph shows the frequencies as bars,with no space between adjacent bars?

(Multiple Choice)

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Question 18

A stem and leaf display does not provide enough information to obtain a complete listing of the original set of scores.

(True/False)

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Question 19

For the following distribution,seven people have scores greater than X = 14.? 20-24 2 15-19 5 10-14 4 5-9 1

(True/False)

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Question 20

A researcher records the number of traffic tickets issued in each county along the New York State thruway.If the results are presented in a frequency distribution graph,what kind of graph should be used?

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

For the distribution in the following table,the 90th percentile is X = 27.5.? \% 25-29 100\% 20-24 80\% 15-19 20\%

The students in a psychology class seemed to think that the midterm exam was very easy.If they are correct,what is the most likely shape for the distribution of exam scores?

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 of this interval?

A set of scores ranges from X = 18 to X= 91.If the scores are put in a grouped frequency distribution table with an interval width of 10 points,the top interval would be 91-100.

For the distribution in the following table,what is the 90^th percentile?? X c\% 30-34 100\% 25-29 90\% 20-24 60\% 15-19 20\%

For the distribution in the following table,what is the 90^th percentile? \% 9 100\% 8 80\% 7 50\% 6 25\%

Figure 2.1 -What scale of measurement was used to measure the scores in the distribution shown in the accompanying graph,Figure 2.1?

For the following distribution,how many people had scores greater than X = 14?? 20-25 2 15-19 5 10-14 4 5-9 1

For the distribution in the following table,what is the percentile rank for X = 8.5?? \% 9 100\% 8 80\% 7 50\% 6 25\%

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

In a grouped frequency distribution table,one interval is identified as 30-34.This interval has a width of 5 points.

Briefly explain what information is available in a regular frequency distribution table that is not available in a grouped table.

8 314 7 945 6 7042 5 68 4 14 Figure 2-3 -For the scores shown in the accompanying stem and leaf display,Figure 2-3,what is the highest score in the distribution??

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

For the following scores: a. Construct a frequency distribution table. b. Sketch a histogram of the frequency distribution.6, 4, 3, 5, 4, 2, 45, 4, 6, 1, 4, 5, 2

What kind of frequency distribution graph shows the frequencies as bars,with no space between adjacent bars?

A stem and leaf display does not provide enough information to obtain a complete listing of the original set of scores.

For the following distribution,seven people have scores greater than X = 14.? 20-24 2 15-19 5 10-14 4 5-9 1

Introduction to Statistics

Central Tendency

Variability

Z-Scores: Location of Scores and Standardized Distributions

Probability

Probability and Samples: the Distribution of Sample Means

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 Analysis of Variance Anova

Two-Factor Analysis of Variance Independent Measures

Correlation

Introduction to Regression

The Chi-Square Statistic: Tests for Goodness of Fit and Independence

The Binomial Test

Filters

Exam 2: Frequency Distributions

A researcher records the number of traffic tickets issued in each county along the New York State thruway.If the results are presented in a frequency distribution graph,what kind of graph should be used?​

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

For the distribution in the following table,the 90th percentile is X = 27.5.? \% 25-29 100\% 20-24 80\% 15-19 20\%

The students in a psychology class seemed to think that the midterm exam was very easy.If they are correct,what is the most likely shape for the distribution of exam scores?​

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 of this interval?​

A set of scores ranges from X = 18 to X= 91.If the scores are put in a grouped frequency distribution table with an interval width of 10 points,the top interval would be 91-100.​

For the distribution in the following table,what is the 90th percentile?? X c\% 30-34 100\% 25-29 90\% 20-24 60\% 15-19 20\%

For the distribution in the following table,what is the 90th percentile? \% 9 100\% 8 80\% 7 50\% 6 25\%

Figure 2.1 -What scale of measurement was used to measure the scores in the distribution shown in the accompanying graph,Figure 2.1?​

For the following distribution,how many people had scores greater than X = 14?? 20-25 2 15-19 5 10-14 4 5-9 1

For the distribution in the following table,what is the percentile rank for X = 8.5?? \% 9 100\% 8 80\% 7 50\% 6 25\%

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

In a grouped frequency distribution table,one interval is identified as 30-34.This interval has a width of 5 points.

Briefly explain what information is available in a regular frequency distribution table that is not available in a grouped table.​

​ 8 314 7 945 6 7042 5 68 4 14 Figure 2-3 -For the scores shown in the accompanying stem and leaf display,Figure 2-3,what is the highest score in the distribution??

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

For the following scores:​ a. Construct a frequency distribution table. b. Sketch a histogram of the frequency distribution.6, 4, 3, 5, 4, 2, 45, 4, 6, 1, 4, 5, 2

What kind of frequency distribution graph shows the frequencies as bars,with no space between adjacent bars?​

A stem and leaf display does not provide enough information to obtain a complete listing of the original set of scores.​

For the following distribution,seven people have scores greater than X = 14.? 20-24 2 15-19 5 10-14 4 5-9 1

Introduction to Statistics

Central Tendency

Variability

Z-Scores: Location of Scores and Standardized Distributions

Probability

Probability and Samples: the Distribution of Sample Means

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 Analysis of Variance Anova

Two-Factor Analysis of Variance Independent Measures

Correlation

Introduction to Regression

The Chi-Square Statistic: Tests for Goodness of Fit and Independence

The Binomial Test

Filters

A researcher records the number of traffic tickets issued in each county along the New York State thruway.If the results are presented in a frequency distribution graph,what kind of graph should be used?

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

The students in a psychology class seemed to think that the midterm exam was very easy.If they are correct,what is the most likely shape for the distribution of exam scores?

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 of this interval?

A set of scores ranges from X = 18 to X= 91.If the scores are put in a grouped frequency distribution table with an interval width of 10 points,the top interval would be 91-100.

For the distribution in the following table,what is the 90^th percentile?? X c\% 30-34 100\% 25-29 90\% 20-24 60\% 15-19 20\%

For the distribution in the following table,what is the 90^th percentile? \% 9 100\% 8 80\% 7 50\% 6 25\%

Figure 2.1 -What scale of measurement was used to measure the scores in the distribution shown in the accompanying graph,Figure 2.1?

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

Briefly explain what information is available in a regular frequency distribution table that is not available in a grouped table.

8 314 7 945 6 7042 5 68 4 14 Figure 2-3 -For the scores shown in the accompanying stem and leaf display,Figure 2-3,what is the highest score in the distribution??

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

For the following scores: a. Construct a frequency distribution table. b. Sketch a histogram of the frequency distribution.6, 4, 3, 5, 4, 2, 45, 4, 6, 1, 4, 5, 2

What kind of frequency distribution graph shows the frequencies as bars,with no space between adjacent bars?

A stem and leaf display does not provide enough information to obtain a complete listing of the original set of scores.