Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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 the above 
A) a bar graph 
B) a histogram 
C) a polygon 
D) all of the above

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

For the distribution in the following table, what is the 90th percentile

Accepted Answer

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 $

Question 5

For the distribution in the following table, the 80th percentile is X = 24.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

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 $

Question 7

For the distribution in the following table, what is the percentile rank for X = 32? $\begin{array}{cc}
X & C \% \
\hline 30-34 & 100 \% \
25-29 & 90 \% \
20-24 & 60 \% \
15-19 & 20 \%
\end{array}$

Accepted Answer

A)  $ 92 \% $ 
B)  $ 92.5 \% $ 
C)  $ 95 \% $ 
D)  $ 97.5 \% $ 
A)  $ 92 \% $ 
B)  $ 92.5 \% $ 
C)  $ 95 \% $ 
D)  $ 97.5 \% $

Question 8

What is the shape of the distribution for the following set of data? Scores: 1, 2, 3, 3, 4, 4, 4 5, 5, 5, 5, 6

Accepted Answer

A) symmetrical 
B) positively skewed 
C) negatively skewed 
D) cumulative 
A) symmetrical 
B) positively skewed 
C) negatively skewed 
D) cumulative

Question 9

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 10

A skewed distribution typically has _____ tail(s) and a normal distribution has ____ tail(s).

Accepted Answer

A) 1, 1 
B) 1, 2 
C) 2, 1 
D) 2, 2 
A) 1, 1 
B) 1, 2 
C) 2, 1 
D) 2, 2

Question 11

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.

Accepted Answer

A) True 
 B)False

Question 12

For the following distribution of quiz scores, if a score of X = 3 or higher is needed for a passing grade, how many individuals passed? $\begin{array}{ll}
X & f \
\hline 5 & 6 \
4 & 5 \
3 & 5 \
2 & 3 \
1 & 2
\end{array}$

Accepted Answer

A)  3 
B)  11 
C)  16 
D)  cannot be determined 
A)  3 
B)  11 
C)  16 
D)  cannot be determined

Question 13

For the following distribution of scores, 20% of the individuals have scores of X = 1. $\begin{array}{ll}
\mathrm{X} & \mathrm{f} \
\hline 5 & 2 \
4 & 8 \
3 & 5 \
2 & 3 \
1 & 2
\end{array}$

Accepted Answer

A) True 
 B)False

Question 14

A grouped frequency distribution table does not provide enough information to obtain a complete listing of the original set of scores.

Accepted Answer

A) True 
 B)False

Question 15

A set of scores ranges from a low of X = 18 to a high of X = 98.If the scores are put in a grouped frequency distribution table with an interval width of 10 points, the bottom interval should be 10-19.

Accepted Answer

A) True 
 B)False

Question 16

What is the total number of scores for the distribution shown in the following table? 
$\begin{array}{ll}
X & f \
\hline 4 & 3 \
3 & 5 \
2 & 4 \
1 & 2
\end{array}$

Accepted Answer

A)  4 
B)  10 
C)  14 
D)  37 
A)  4 
B)  10 
C)  14 
D)  37

Question 17

There is a total of n = 5 scores in the distribution shown in the following table. $\begin{array}{ll}
X & f \
\hline 5 & 2 \
4 & 8 \
3 & 5 \
2 & 3 \
1 & 2
\end{array}$

Accepted Answer

A) True 
 B)False

Question 18

If the following distribution was shown in a histogram, the bar above the 15-19 interval would reach from _____ to _____. $\begin{array}{cc}
\mathrm{X} & \mathrm{f} \
\hline 20-25 & 2 \
15-19 & 5 \
10-14 & 4 \
5-9 & 1
\end{array}$

Accepted Answer

A)  $ X=14.5 $ to $ X=19.5 $ 
B)  $ X=15.5 $ to $ X=18.5 $ 
C)  $ X=15.5 $ to $ X=19.5 $ 
D)  $ X=15.0 $ to $ X=19.0 $ 
A)  $ X=14.5 $ to $ X=19.5 $ 
B)  $ X=15.5 $ to $ X=18.5 $ 
C)  $ X=15.5 $ to $ X=19.5 $ 
D)  $ X=15.0 $ to $ X=19.0 $

Question 19

For the following distribution, what is the highest score? $\begin{array}{cc}
X & f \
\hline 20-25 & 2 \
15-19 & 5 \
10-14 & 4 \
5-9 & 1
\end{array}$

Accepted Answer

A)  5 
B)  20 
C)  25 
D)  cannot be determined 
A)  5 
B)  20 
C)  25 
D)  cannot be determined

Question 20

What scale of measurement was used to measure the scores in the distribution shown in the following graph?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval or ratio 
D)  cannot determine 
A)  nominal 
B)  ordinal 
C)  interval or ratio 
D)  cannot determine

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

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

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

For the distribution in the following table, what is the 90^th percentile

For the distribution in the following table, the 80^th percentile is X = 24.

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

For the distribution in the following table, what is the percentile rank for X = 32? X C\% 30-34 100\% 25-29 90\% 20-24 60\% 15-19 20\%

What is the shape of the distribution for the following set of data? Scores: 1, 2, 3, 3, 4, 4, 4 5, 5, 5, 5, 6

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.

A skewed distribution typically has _ tail(s) and a normal distribution has tail(s).

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 following distribution of quiz scores, if a score of X = 3 or higher is needed for a passing grade, how many individuals passed? X f 5 6 4 5 3 5 2 3 1 2

For the following distribution of scores, 20% of the individuals have scores of X = 1. 5 2 4 8 3 5 2 3 1 2

A grouped frequency distribution table does not provide enough information to obtain a complete listing of the original set of scores.

A set of scores ranges from a low of X = 18 to a high of X = 98.If the scores are put in a grouped frequency distribution table with an interval width of 10 points, the bottom interval should be 10-19.

What is the total number of scores for the distribution shown in the following table? X f 4 3 3 5 2 4 1 2

There is a total of n = 5 scores in the distribution shown in the following table. X f 5 2 4 8 3 5 2 3 1 2

If the following distribution was shown in a histogram, the bar above the 15-19 interval would reach from _ to _. 20-25 2 15-19 5 10-14 4 5-9 1

For the following distribution, what is the highest score? X f 20-25 2 15-19 5 10-14 4 5-9 1

What scale of measurement was used to measure the scores in the distribution shown in the following graph?

Introduction to Statistics

Central Tendency

Variability

Z-Scores

Probability

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 Anova

Two-Factor Analysis of Variance

Correlation

Introduction to Regression

Chi-Square Tests

The Binomial Test

Choosing the Right Statistics

Filters

Exam 2: Frequency Distributions

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

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

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

For the distribution in the following table, what is the 90th percentile

For the distribution in the following table, the 80th percentile is X = 24.

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

For the distribution in the following table, what is the percentile rank for X = 32? X C\% 30-34 100\% 25-29 90\% 20-24 60\% 15-19 20\%

What is the shape of the distribution for the following set of data? Scores: 1, 2, 3, 3, 4, 4, 4 5, 5, 5, 5, 6

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.

A skewed distribution typically has _____ tail(s) and a normal distribution has ____ tail(s).

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 following distribution of quiz scores, if a score of X = 3 or higher is needed for a passing grade, how many individuals passed? X f 5 6 4 5 3 5 2 3 1 2

For the following distribution of scores, 20% of the individuals have scores of X = 1. 5 2 4 8 3 5 2 3 1 2

A grouped frequency distribution table does not provide enough information to obtain a complete listing of the original set of scores.

A set of scores ranges from a low of X = 18 to a high of X = 98.If the scores are put in a grouped frequency distribution table with an interval width of 10 points, the bottom interval should be 10-19.

What is the total number of scores for the distribution shown in the following table? X f 4 3 3 5 2 4 1 2

There is a total of n = 5 scores in the distribution shown in the following table. X f 5 2 4 8 3 5 2 3 1 2

If the following distribution was shown in a histogram, the bar above the 15-19 interval would reach from _____ to _____. 20-25 2 15-19 5 10-14 4 5-9 1

For the following distribution, what is the highest score? X f 20-25 2 15-19 5 10-14 4 5-9 1

What scale of measurement was used to measure the scores in the distribution shown in the following graph?

Introduction to Statistics

Central Tendency

Variability

Z-Scores

Probability

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 Anova

Two-Factor Analysis of Variance

Correlation

Introduction to Regression

Chi-Square Tests

The Binomial Test

Choosing the Right Statistics

Filters

For the distribution in the following table, what is the 90^th percentile

For the distribution in the following table, the 80^th percentile is X = 24.

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

A skewed distribution typically has _ tail(s) and a normal distribution has tail(s).

If the following distribution was shown in a histogram, the bar above the 15-19 interval would reach from _ to _. 20-25 2 15-19 5 10-14 4 5-9 1