Question 1

Draw a bar graph for the following frequency distribution.
Score f 
Red 2
Blue 5
Green 4
Orange 3

Accepted Answer

The answer of Draw a bar graph for the following...

Question 2

The distinguishing characteristic of an idealized bimodal distribution is

Accepted Answer

A) all the scores are the same. 
B) all the frequencies are the same. 
C) two scores have the same and the highest frequency. 
D) it is always symmetrical.

Question 3

In a normal distribution, if 5% of the scores are greater than 80, what percentage of the scores are between the mean and 80?

Accepted Answer

The answer of In a normal distribution, if 5% of...

Question 4

If a score appears 20 times in a sample of 80 scores, what is its relative frequency?

Accepted Answer

A) .25 
B) 4 
C) 20 
D) .20

Question 5

One benefit to using a frequency distribution table or graph is it makes it easier to

Accepted Answer

A) see the raw scores. 
B) identify the variables. 
C) see a relationship hidden in the data. 
D) determine the sample size.

Question 6

Suppose the scores between 20 and 40 have a relatively frequency of .30.What area under the normal curve do these scores constitute?

Accepted Answer

The answer of Suppose the scores between 20 and 40...

Question 7

For a given set of data, would it be possible to have the following relative frequencies: .45, .33, .22., .18, .29? Why or why not?

Accepted Answer

The answer of For a given set of data, would...

Question 8

________distributions contain low-frequency, extreme low scores without low-frequency extreme high scores.

Accepted Answer

A) Negatively skewed 
B) Positively skewed 
C) Bimodal 
D) Normal

Question 9

Use the following data set to construct a frequency distribution table showing a) frequency, b) relative frequency, and c) percent.
21, 21, 20, 20, 19, 17, 17, 16, 16, 16, 16, 14

Accepted Answer

The answer of Use the following data set to construct...

Question 10

The relative frequency of a score must be

Accepted Answer

A) a value between 0 and 100. 
B) represented using a histogram chart. 
C) a value equal to or greater than the score's frequency. 
D) a value between 0 and 1.

Question 11

Suppose in a normal distribution, where the mean is 50, you have a score of 4.Where in the distribution would this score fall?

Accepted Answer

The answer of Suppose in a normal distribution, where the...

Question 12

In statistical notation, f stands for the

Accepted Answer

A) number of times a given score occurs in a sample. 
B) total number of scores in a data set. 
C) relative frequency of a given score. 
D) cumulative frequency of a given score.

Question 13

If in a grouped distribution, the frequency for the "5-10" group was 7, what should the frequency of a score of "5" be?

Accepted Answer

The answer of If in a grouped distribution, the frequency...

Question 14

What is wrong in the following table? 
Score f

Accepted Answer

A) The scores and the frequencies must be reversed. 
B) The relative frequencies are reported in the f column. 
C) Not all possible scores between the highest and lowest observed scores are reported. 
D) Nothing is wrong.

Question 15

What is the percent for the score "7" in the following distribution?

Accepted Answer

A) .22 
B) 5 
C) 22 
D) 30

Exam 2: Creating and Using Frequency Distributions

Draw a bar graph for the following frequency distribution. Score f Red 2 Blue 5 Green 4 Orange 3