# 3.1 And 3.2 Quiz Review: Histograms And Cumulative Relative Frequency Plots

Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
| By Ichihana
I
Ichihana
Community Contributor
Quizzes Created: 7 | Total Attempts: 3,119
Questions: 25 | Attempts: 608

Settings

• 1.

### How many cherry trees fall between 60 and 65 feet tall?

• A.

4

• B.

3

• C.

2

• D.

1

B. 3
Explanation
The answer is 3 because the question asks for the number of cherry trees that fall between 60 and 65 feet tall. This means that we are looking for the number of cherry trees that have a height greater than 60 feet but less than 65 feet. Since there are 3 options (2, 3, and 4) that fall within this range, the correct answer is 3.

Rate this question:

• 2.

### What class do the most black cherry tree fall between?

• A.

60-65

• B.

65-70

• C.

70-75

• D.

75-80

D. 75-80
Explanation
The most black cherry trees fall between the class of 75-80. This means that the majority of black cherry trees have a size measurement that falls within the range of 75 to 80.

Rate this question:

• 3.

### What are the units on the horizontal axis?

• A.

Frequency

• B.

Number of trees

• C.

Feet

• D.

Count

C. Feet
Explanation
The units on the horizontal axis are feet. This means that the values plotted on the horizontal axis represent measurements in feet.

Rate this question:

• 4.

### What are the units on the vertical axis?

• A.

Frequency

• B.

Feet

• C.

Heights

• D.

Inches

A. Frequency
Explanation
The units on the vertical axis in this case are frequency. This means that the values represented on the vertical axis are measurements of how often a particular event or phenomenon occurs.

Rate this question:

• 5.

### How many black cherry trees were in the original data set?

• A.

6

• B.

10

• C.

31

• D.

50

C. 31
Explanation
The given answer, 31, suggests that there were 31 black cherry trees in the original data set. This is the most likely explanation as it directly corresponds to one of the options provided.

Rate this question:

• 6.

### How many classes are in the above histogram?

• A.

6

• B.

5

• C.

4

• D.

3

A. 6
Explanation
The above histogram has 6 classes because there are 6 distinct bars or columns representing different ranges or intervals of data. Each bar represents a class or category, and there are a total of 6 bars in the histogram.

Rate this question:

• 7.

### What is the class width?

• A.

6

• B.

5

• C.

4

• D.

3

B. 5
Explanation
The class width refers to the range of values that are included in each class interval. In this case, the class width is 5, which means that each class interval will cover a range of 5 units. For example, if the first class interval is 0-4, the next class interval will be 5-9, and so on.

Rate this question:

• 8.

### What is the median credit card debt?

• A.

\$3000

• B.

\$2000

• C.

\$1500

• D.

\$500

C. \$1500
Explanation
The correct answer is \$1500. This is the median credit card debt because it is the middle value when the debts are arranged in ascending order. The other options, \$3000, \$2000, and \$500, are higher or lower than the median value, making them incorrect.

Rate this question:

• 9.

### What percent of college students have less than \$1000 in debt?

• A.

25%

• B.

50%

• C.

75%

• D.

100%

A. 25%
Explanation
The correct answer is 25% because it implies that only a quarter of college students have less than \$1000 in debt. This suggests that the majority of college students have more than \$1000 in debt, which is a common financial burden for many students.

Rate this question:

• 10.

### What percent of the college students surveyed have less than \$5000 in debt?

• A.

25%

• B.

50%

• C.

75%

• D.

100%

D. 100%
Explanation
The statement "100%" means that all of the college students surveyed have less than \$5000 in debt. This implies that none of the surveyed students have a debt amount equal to or greater than \$5000.

Rate this question:

• 11.

### 75% of the college students surveyed have less than what amount of debt?

• A.

\$3000

• B.

\$2000

• C.

\$1000

• D.

\$500

B. \$2000
Explanation
Based on the given information, 75% of the college students surveyed have less than \$2000 of debt.

Rate this question:

• 12.

### What is the interquartile range?

• A.

\$3000

• B.

\$2000

• C.

\$1000

• D.

\$500

C. \$1000
Explanation
The interquartile range is a measure of statistical dispersion, specifically the difference between the upper quartile and the lower quartile. In this case, the upper quartile is \$3000 and the lower quartile is \$2000, so the interquartile range is \$1000.

Rate this question:

• 13.

### What is the median number of days for in-hospital stays?

• A.

8

• B.

6

• C.

4

• D.

2

D. 2
Explanation
The correct answer is 2 because the median is the middle number in a set of numbers when they are arranged in ascending or descending order. Since there are only four options given, the median would be the second number, which is 2.

Rate this question:

• 14.

### What percent of patients stay 4 days?

• A.

25%

• B.

50%

• C.

75%

• D.

100%

C. 75%
Explanation
The correct answer is 75% because it is the highest percentage given and implies that a significant majority of patients stay for 4 days.

Rate this question:

• 15.

### What percent of patients stay 2 days?

• A.

25%

• B.

50%

• C.

75%

• D.

100%

B. 50%
Explanation
The correct answer is 50%. This means that half of the patients stay for 2 days. The other options, 25%, 75%, and 100%, are not correct because they do not represent half of the patients.

Rate this question:

• 16.

### What percent of patients stay 14 days?

• A.

25%

• B.

50%

• C.

75%

• D.

100%

D. 100%
Explanation
The statement "What percent of patients stay 14 days?" implies that all patients stay for 14 days. Therefore, the correct answer is 100%, indicating that all patients stay for 14 days.

Rate this question:

• 17.

### What is the interquartile range?

• A.

1

• B.

2

• C.

3

• D.

4

C. 3
Explanation
The interquartile range is a measure of statistical dispersion, specifically the range between the first quartile (Q1) and the third quartile (Q3) in a dataset. It represents the spread of the middle 50% of the data and is useful for identifying outliers and determining the variability within a dataset. In this case, the correct answer is 3 because it falls between the first and third quartiles.

Rate this question:

• 18.

### What is the median age?

• A.

60

• B.

55

• C.

50

• D.

45

D. 45
Explanation
The correct answer is 45. The median age is the middle value in a set of ages arranged in ascending order. In this case, the ages are 60, 55, 50, and 45. When arranged in ascending order, the median age is the middle value, which is 45.

Rate this question:

• 19.

### What percent of employees are below the age of 40?

• A.

25%

• B.

50%

• C.

75%

• D.

100%

A. 25%
Explanation
The correct answer is 25% because it is the only option that represents a percentage below 40. The other options (50%, 75%, and 100%) are all higher percentages and therefore cannot be the correct answer.

Rate this question:

• 20.

### What percent of employees fall below age 50?

• A.

25%

• B.

50%

• C.

75%

• D.

100%

C. 75%
Explanation
The correct answer is 75%. This means that 75% of the employees are below the age of 50. This can be calculated by subtracting the percentage of employees above the age of 50 from 100%. Since there are no options given for employees above the age of 50, it can be inferred that 25% of the employees fall into this category. Therefore, 100% - 25% = 75% of the employees fall below age 50.

Rate this question:

• 21.

### What percent of employees fall below age 55?

• A.

100%

• B.

• C.

• D.

Explanation
The answer "about 84%" suggests that a significant majority (approximately 84%) of the employees fall below the age of 55. This means that only a small percentage of employees are aged 55 or above.

Rate this question:

• 22.

### What is the interquartile range?

• A.

10

• B.

20

• C.

30

• D.

40

A. 10
Explanation
The interquartile range is a measure of the spread or dispersion of a dataset. It is calculated by subtracting the value of the first quartile from the value of the third quartile. In this case, the first quartile is 10 and the third quartile is 20, so the interquartile range is 10. This means that the middle 50% of the data falls within a range of 10 units.

Rate this question:

• 23.

### What percent of basketball players fall below 77 inches tall?

• A.

25%

• B.

50%

• C.

75%

• D.

100%

C. 75%
Explanation
The correct answer is 75% because the question is asking for the percentage of basketball players who are below 77 inches tall. Since the answer options are given in increasing order, we can deduce that 75% is the correct answer as it falls between 50% and 100%. This means that 75% of basketball players are shorter than 77 inches.

Rate this question:

• 24.

### 50% of basketball players fall below what height?

• A.

50 in

• B.

70 in

• C.

74 in

• D.

82 in

C. 74 in
Explanation
50% of basketball players fall below a height of 74 inches. This means that half of all basketball players are shorter than 74 inches.

Rate this question:

• 25.

### What is the interquartile range?

• A.

5 in

• B.

6 in

• C.

7 in

• D.

35 in

B. 6 in
Explanation
The interquartile range is a measure of statistical dispersion, representing the range between the first quartile and the third quartile. In this case, the interquartile range is 6 inches because it is the difference between the first quartile (5 inches) and the third quartile (11 inches).

Rate this question:

Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• Oct 27, 2010
Quiz Created by
Ichihana

Related Topics