Exam 2: Exploring Data: Frequency Distributions and Graphs

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The numbers in this problem are senior-year averages for each of the 25 honor graduates at Psmallton High School. Arrange them into a simple frequency distribution, and draw a frequency polygon from the data. Tell the direction of the skew. 92 97 94 93 93 100 95 93 96 95 97 94 94 96 97 93 95 93 94 95 93 94 95 94 93

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Question 81

Describe each graph below as correct or incorrect. Tell what is wrong with the incorrect one(s). -

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Question 82

The graphic in the text showing the majors of college graduates was a

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Question 83

A frequency polygon and a histogram are alike in that they both

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Question 84

Which of the following class intervals has a midpoint of 45?

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Question 85

Describe each figure below as a frequency polygon, histogram, or line graph. -

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Question 86

When a curve has a shape with two peaks, it is called

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Question 87

The cheerleaders at Rock Valley Tech had a problem. Spectator participation during yells was just terrible. They decided to find out which yells were unpopular and drop them from their repertoire. Accordingly, at the next game they passed out to the students a questionnaire designed to find out the most unpopular yell. (Since they knew that this question was not likely to be interesting by itself, they added other questions about the cheerleaders but these answers were ignored.) Five yells were named: Abba-dabba by 5 students, E. Coli by 12, Doggy by 27, Coatimonday by 23, Barse, Barse, Keya by 19. Arrange these data into a graph.

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Question 88

A line graph shows the relationship between two variables.

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Question 89

The best way to determine if a graph is a histogram or a bar graph is to look at

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Question 90

Identify each graph below as correct or incorrect. Describe what is wrong with each incorrect one. -

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Question 91

Grouped frequency distributions have class intervals that cover two or more scores.

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Question 92

Describe each figure below as a frequency polygon, histogram, or line graph. -

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Question 93

Suppose you had frequency counts of people who were listening to one of four radio stations. The appropriate graph for such data would be a

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Question 94

Showing 81 - 94 of 94

Describe each graph below as correct or incorrect. Tell what is wrong with the incorrect one(s). -

The graphic in the text showing the majors of college graduates was a

A frequency polygon and a histogram are alike in that they both

Which of the following class intervals has a midpoint of 45?

Describe each figure below as a frequency polygon, histogram, or line graph. -

When a curve has a shape with two peaks, it is called

A line graph shows the relationship between two variables.

The best way to determine if a graph is a histogram or a bar graph is to look at

Identify each graph below as correct or incorrect. Describe what is wrong with each incorrect one. -

Grouped frequency distributions have class intervals that cover two or more scores.

Describe each figure below as a frequency polygon, histogram, or line graph. -

Suppose you had frequency counts of people who were listening to one of four radio stations. The appropriate graph for such data would be a

Introduction

Exploring Data: Central Tendency

Exploring Data: Variability

Other Descriptive Statistics

Correlation and Regression

Theoretical Distributions Including the Normal Distribution

Samples, Sampling Distributions, and Confidence Intervals

Hypothesis Testing and Effect Size: One-Sample Designs

Hypothesis Testing, Effect Size, and and Confidence Intervals: Two-Sample Designs

Analysis of Variance: One-Way Classification

Analysis of Variance: One-Factor Repeated Measures

Analysis of Variance: Factorial Design

Chi Square Tests

More Nonparametric Tests

Appendix: Grouped Frequency Distributions and Central Tendency

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