Exam 2: Frequency Distributions and Graphs

One disadvantage of pie charts is that it is difficult to visually compare 2 frequency distributions. Plotting relative frequency distributions (polygons or ogives) on the same axes is usually more informative.

(True/False)

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Question 21

In order to graphically compare two frequency distributions, one should use relative frequency distributions in order to take differing sample sizes into account.

(True/False)

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Question 22

When data are collected in original form, they are called . ______________________________

(Short Answer)

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Question 23

Karen is constructing a pie graph to represent the number of hours her classmates do homework each day. She found that $8 / 24$ did homework for three hours each day. In her pie graph, this would represent how Many degrees?

(Multiple Choice)

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Question 24

Which of the following is a frequency polygon?

(Multiple Choice)

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Question 25

Thirty students recorded the colours of their eyes, choosing from the colours brown, blue, green, hazel, and black. This data can be appropriately summarized in a

(Multiple Choice)

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Question 26

A time series graph represents data that occur over a specific period.

(True/False)

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Question 27

The cumulative frequency is the sum of the frequencies accumulated to the upper boundary of a class in the distribution.

(True/False)

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Question 28

A histogram uses the midpoints for the x values and the frequencies as the y values.

(True/False)

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Question 29

What are the boundaries of the class 1.87-3.43?

(Multiple Choice)

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Question 30

Which of the following could be a cumulative frequency graph?

(Multiple Choice)

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Question 31

For the class 16.3-23.8, the width is 7.

(True/False)

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Question 32

The graphs that have their distributions as proportions instead of raw data as frequencies are called

(Multiple Choice)

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Question 33

Which of the following could be an ogive?

(Multiple Choice)

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Question 34

A time series graph is useful for which of the following purposes?

(Multiple Choice)

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Question 35

A Pareto chart does not have which of the following properties?

(Multiple Choice)

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Question 36

A Pareto chart is useful for showing percentages of the total.

(True/False)

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Question 37

For the table below, calculate the percent of students that fell within the B

(Multiple Choice)

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Question 38

The lower class limit represents the smallest data value that can be included in the class.

(True/False)

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Question 39

An automobile dealer wants to construct a pie graph to represent types of cars sold in July. He sold 72 cars; 16 of which were convertibles. The convertibles will represent how many degrees in the circle?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 83

One disadvantage of pie charts is that it is difficult to visually compare 2 frequency distributions. Plotting relative frequency distributions (polygons or ogives) on the same axes is usually more informative.

In order to graphically compare two frequency distributions, one should use relative frequency distributions in order to take differing sample sizes into account.

When data are collected in original form, they are called . ______________________________

Karen is constructing a pie graph to represent the number of hours her classmates do homework each day. She found that $8 / 24$ did homework for three hours each day. In her pie graph, this would represent how Many degrees?

Which of the following is a frequency polygon?

Thirty students recorded the colours of their eyes, choosing from the colours brown, blue, green, hazel, and black. This data can be appropriately summarized in a

A time series graph represents data that occur over a specific period.

The cumulative frequency is the sum of the frequencies accumulated to the upper boundary of a class in the distribution.

A histogram uses the midpoints for the x values and the frequencies as the y values.

What are the boundaries of the class 1.87-3.43?

Which of the following could be a cumulative frequency graph?

For the class 16.3-23.8, the width is 7.

The graphs that have their distributions as proportions instead of raw data as frequencies are called

Which of the following could be an ogive?

A time series graph is useful for which of the following purposes?

A Pareto chart does not have which of the following properties?

A Pareto chart is useful for showing percentages of the total.

For the table below, calculate the percent of students that fell within the B

The lower class limit represents the smallest data value that can be included in the class.

An automobile dealer wants to construct a pie graph to represent types of cars sold in July. He sold 72 cars; 16 of which were convertibles. The convertibles will represent how many degrees in the circle?

The Nature of Probability and Statistics

Data Description

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Proportions, and Two Variances

Correlation and Regression

Chi-Square and Analysis of Variance Anova

Tables

Data Bank

Glossary

Filters

Exam 2: Frequency Distributions and Graphs

One disadvantage of pie charts is that it is difficult to visually compare 2 frequency distributions. Plotting relative frequency distributions (polygons or ogives) on the same axes is usually more informative.

In order to graphically compare two frequency distributions, one should use relative frequency distributions in order to take differing sample sizes into account.

When data are collected in original form, they are called __________. ________________________________________

Karen is constructing a pie graph to represent the number of hours her classmates do homework each day. She found that 8/248 / 248/24 did homework for three hours each day. In her pie graph, this would represent how Many degrees?

Which of the following is a frequency polygon?

Thirty students recorded the colours of their eyes, choosing from the colours brown, blue, green, hazel, and black. This data can be appropriately summarized in a

A time series graph represents data that occur over a specific period.

The cumulative frequency is the sum of the frequencies accumulated to the upper boundary of a class in the distribution.

A histogram uses the midpoints for the x values and the frequencies as the y values.

What are the boundaries of the class 1.87-3.43?

Which of the following could be a cumulative frequency graph?

For the class 16.3-23.8, the width is 7.

The graphs that have their distributions as proportions instead of raw data as frequencies are called

Which of the following could be an ogive?

A time series graph is useful for which of the following purposes?

A Pareto chart does not have which of the following properties?

A Pareto chart is useful for showing percentages of the total.

For the table below, calculate the percent of students that fell within the B

The lower class limit represents the smallest data value that can be included in the class.

An automobile dealer wants to construct a pie graph to represent types of cars sold in July. He sold 72 cars; 16 of which were convertibles. The convertibles will represent how many degrees in the circle?

The Nature of Probability and Statistics

Data Description

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Proportions, and Two Variances

Correlation and Regression

Chi-Square and Analysis of Variance Anova

Tables

Data Bank

Glossary

Filters

When data are collected in original form, they are called . ______________________________

Karen is constructing a pie graph to represent the number of hours her classmates do homework each day. She found that $8 / 24$ did homework for three hours each day. In her pie graph, this would represent how Many degrees?