Question 1

Cumulative percent data can be summarized using an ogive.

Accepted Answer

A) True 
 B)False

Question 2

The sum of the frequencies for a distribution is 100.This means that fewer than 100 persons were counted.

Accepted Answer

A) True 
 B)False

Question 3

As a general rule,a simple frequency distribution should have between

Accepted Answer

A)  3 and 6 intervals. 
B)  5 and 10 intervals. 
C)  8 and 12 intervals. 
D)  5 and 20 intervals. 
A)  3 and 6 intervals. 
B)  5 and 10 intervals. 
C)  8 and 12 intervals. 
D)  5 and 20 intervals.

Question 4

A researcher summarizes a set of frequency data into five intervals.This is an example of a frequency distribution for

Accepted Answer

A)  ungrouped data. 
B)  grouped data. 
C)  inferential statistics. 
D)  population parameters. 
A)  ungrouped data. 
B)  grouped data. 
C)  inferential statistics. 
D)  population parameters.

Question 5

A relative frequency distribution is appropriate when

Accepted Answer

A)  there are large frequency counts in each interval. 
B)  the data are grouped into relatively small intervals. 
C)  there are open classes. 
D)  the interval width is too large. 
A)  there are large frequency counts in each interval. 
B)  the data are grouped into relatively small intervals. 
C)  there are open classes. 
D)  the interval width is too large.

Question 6

A histogram is basically a bar chart in which the bars do not touch.

Accepted Answer

A) True 
 B)False

Question 7

A researcher records the number of children at a local school from married-,divorced-,and single-parent homes.This frequency data would be best displayed as a(n)

Accepted Answer

A)  bar chart. 
B)  frequency polygon. 
C)  histogram. 
D)  ogive. 
A)  bar chart. 
B)  frequency polygon. 
C)  histogram. 
D)  ogive.

Question 8

Ungrouped data can be distributed as

Accepted Answer

A)  intervals. 
B)  categories. 
C)  upper and lower boundaries. 
D)  all of these. 
A)  intervals. 
B)  categories. 
C)  upper and lower boundaries. 
D)  all of these.

Question 9

In the stem-and-leaf display,each number to the right of the vertical line is referred to as a ______; the numbers to the left of the vertical line are called the ______.

Accepted Answer

A)  stem; leaf 
B)  leaf; stem 
C)  digit; place 
D)  place; digit 
A)  stem; leaf 
B)  leaf; stem 
C)  digit; place 
D)  place; digit

Question 10

A ______ is plotted at the midpoint of each interval,whereas a(n)______ is plotted at the upper boundary of each interval.

Accepted Answer

A)  histogram; bar chart 
B)  frequency polygon; histogram 
C)  frequency polygon; ogive 
D)  histogram; frequency polygon 
A)  histogram; bar chart 
B)  frequency polygon; histogram 
C)  frequency polygon; ogive 
D)  histogram; frequency polygon

Question 11

A frequency polygon,but not an ogive,can be used to summarize cumulative percent distributions.

Accepted Answer

A) True 
 B)False

Question 12

The sum of relative frequencies for each interval is ______.

Accepted Answer

A)  1.00 
B)  100% 
C)  equal to the total number of scores in a distribution 
D)  both 1.00 and 100% 
A)  1.00 
B)  100% 
C)  equal to the total number of scores in a distribution 
D)  both 1.00 and 100%

Question 13

The data should be ungrouped for the following data set: 6,7,7,7,7,7,7,8,8,8,9,9,9,6,6,6,8,and 7.

Accepted Answer

A) True 
 B)False

Question 14

Grouped data can be distributed

Accepted Answer

A)  as a range of values. 
B)  with upper and lower boundaries. 
C)  into intervals. 
D)  all of these. 
A)  as a range of values. 
B)  with upper and lower boundaries. 
C)  into intervals. 
D)  all of these.

Question 15

State the original data displayed in the following stem-and-leaf display.

Accepted Answer

A)  3, 2, 3, 6, 4, 7, 8, 8, 5, 4, and 9 
B)  32, 33, 36, 47, 48, 54, and 59 
C)  32, 33, 36, 47, 48, 48, 54, and 59 
D)  It is not possible to know the original data from this display. 
A)  3, 2, 3, 6, 4, 7, 8, 8, 5, 4, and 9 
B)  32, 33, 36, 47, 48, 54, and 59 
C)  32, 33, 36, 47, 48, 48, 54, and 59 
D)  It is not possible to know the original data from this display.

Question 16

Relative frequencies sum to the total frequency count.

Accepted Answer

A) True 
 B)False

Question 17

Percentages range from 0% to 100% and can never be negative.

Accepted Answer

A) True 
 B)False

Question 18

What is the corresponding percentile of a percentile point?

Accepted Answer

A)  the score 
B)  the frequency 
C)  the percentile rank 
D)  always 100% 
A)  the score 
B)  the frequency 
C)  the percentile rank 
D)  always 100%

Question 19

A percentile is

Accepted Answer

A)  a percentile point. 
B)  a value between -1 and +1. 
C)  a raw score multiplied times 100. 
D)  only used with ungrouped data. 
A)  a percentile point. 
B)  a value between -1 and +1. 
C)  a raw score multiplied times 100. 
D)  only used with ungrouped data.

Question 20

The percentile rank of a score is the percentage of scores with values that fall below a specified score in a distribution.

Accepted Answer

A) True 
 B)False

Cumulative percent data can be summarized using an ogive.

The sum of the frequencies for a distribution is 100.This means that fewer than 100 persons were counted.

As a general rule,a simple frequency distribution should have between

A researcher summarizes a set of frequency data into five intervals.This is an example of a frequency distribution for

A relative frequency distribution is appropriate when

A histogram is basically a bar chart in which the bars do not touch.

A researcher records the number of children at a local school from married-,divorced-,and single-parent homes.This frequency data would be best displayed as a(n)

Ungrouped data can be distributed as

In the stem-and-leaf display,each number to the right of the vertical line is referred to as a ; the numbers to the left of the vertical line are called the .

A is plotted at the midpoint of each interval,whereas a(n) is plotted at the upper boundary of each interval.

A frequency polygon,but not an ogive,can be used to summarize cumulative percent distributions.

The sum of relative frequencies for each interval is ______.

The data should be ungrouped for the following data set: 6,7,7,7,7,7,7,8,8,8,9,9,9,6,6,6,8,and 7.

Grouped data can be distributed

State the original data displayed in the following stem-and-leaf display.

Relative frequencies sum to the total frequency count.

Percentages range from 0% to 100% and can never be negative.

What is the corresponding percentile of a percentile point?

A percentile is

The percentile rank of a score is the percentage of scores with values that fall below a specified score in a distribution.

Introduction to Statistics

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance,effect Size,and Power

Testing Means: One-Sample and Two-Independent-Sample T Tests

Testing Means: Truehe Related-Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated-Measuresdesign

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters

Exam 2: Summarizing Data: Frequency Distributions in Tables and Graphs

Cumulative percent data can be summarized using an ogive.

The sum of the frequencies for a distribution is 100.This means that fewer than 100 persons were counted.

As a general rule,a simple frequency distribution should have between

A researcher summarizes a set of frequency data into five intervals.This is an example of a frequency distribution for

A relative frequency distribution is appropriate when

A histogram is basically a bar chart in which the bars do not touch.

A researcher records the number of children at a local school from married-,divorced-,and single-parent homes.This frequency data would be best displayed as a(n)

Ungrouped data can be distributed as

In the stem-and-leaf display,each number to the right of the vertical line is referred to as a ______; the numbers to the left of the vertical line are called the ______.

A ______ is plotted at the midpoint of each interval,whereas a(n)______ is plotted at the upper boundary of each interval.

A frequency polygon,but not an ogive,can be used to summarize cumulative percent distributions.

The sum of relative frequencies for each interval is ______.

The data should be ungrouped for the following data set: 6,7,7,7,7,7,7,8,8,8,9,9,9,6,6,6,8,and 7.

Grouped data can be distributed

State the original data displayed in the following stem-and-leaf display.

Relative frequencies sum to the total frequency count.

Percentages range from 0% to 100% and can never be negative.

What is the corresponding percentile of a percentile point?

A percentile is

The percentile rank of a score is the percentage of scores with values that fall below a specified score in a distribution.

Introduction to Statistics

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance,effect Size,and Power

Testing Means: One-Sample and Two-Independent-Sample T Tests

Testing Means: Truehe Related-Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated-Measuresdesign

Analysis of Variance: Two-Way Between-Subjects Factorial Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters

In the stem-and-leaf display,each number to the right of the vertical line is referred to as a ; the numbers to the left of the vertical line are called the .

A is plotted at the midpoint of each interval,whereas a(n) is plotted at the upper boundary of each interval.