# Grade 6 Statistics & Probability Review (Grade 6)

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## Grade 6 Statistics & Probability Review

1.

The city tracked the amount of waste that was recycled from 2000 to 2007. "In which year was the least amount recycled?" is a good example of a statistical question about the situation.

- True
- False

2.

Select each question that represents a statistical question.

Select ALL that apply.

Select ALL that apply.

- How many days are in the month of May?
- What grade did you earn on your math test?
- What time do sixth students arrive at school?
- What percentage of students play an instrument?
- What was the average math test grade for the class?

3.

What is the shape of the data shown on the bar graph?

- symmetrical
- not symmetrical

4.

Which term best describes the data represented by the number 7 on the line plot?

- gap
- peak
- cluster

5.

Which is a measure of center for a data set?

- mean
- interquartile range

6.

The difference between the largest and smallest numbers in a set of data is called the

- mean.
- mode.
- range.
- median.

7.

Which line plot correctly shows the listed data?

[math]7, 2, 5, 9, 7, 1, 3, 5, 2, 7, 2, 9, 1, 7, 7 [/math]

[math]7, 2, 5, 9, 7, 1, 3, 5, 2, 7, 2, 9, 1, 7, 7 [/math]

8.

The graph shows student quiz scores, in percentages (%), on a vocabulary quiz. How many students, in all, took the quiz?

- 26
- 28
- 76
- 100

9.

The graph shows student quiz scores, in percentages (%), on a biology quiz. How many students scored at least 91%?

- 8
- 9
- 10
- 11

10.

A math teacher records student test scores. The box plot shows the results.

What is the range?

What is the range?

- 20 points
- 30 points
- 40 points
- 60 points

11.

The box plots compare employee salaries, in thousands of dollars, at two companies.

What percent of employees at company B earn $24,000 or less?

What percent of employees at company B earn $24,000 or less?

- 0%
- 25%
- 50%
- 75%
- 100%

12.

The line plot shows the number of pets that live in each house on Water Street. How many houses are there on Water Street?

- 0
- 6
- 10
- 15

13.

The graph shows the distances students live from Union School. About how many students attend the school?

- 250
- 290
- 340
- 380

14.

Bart is collecting data on sunflower growth. He records the height, in inches, of his sunflower each day. Which best describes the type of data Bart is collecting?

- numerical data
- categorical data

15.

The test results on a math exam were: 77, 66, 70, 83, 88, 64, 93 and 99.

What is the median test score?

What is the median test score?

- 70
- 82
- 86
- 80

16.

Consider the list of golf scores:

71, 68, 72, 79, 80, 77, 84, 70, 92

What is a median, mean, and range for the set?

71, 68, 72, 79, 80, 77, 84, 70, 92

What is a median, mean, and range for the set?

- median=77, mean=77, range=24
- median=80, mean=78, range=22
- median=81, mean=77, range=23

17.

For this set of data: 5, 5, 6, 7, 7, which statement is true?

- mean = mode
- median = mode
- mean = median
- mean < median

18.

Find the range and the first and third quartiles for the data set.

26, 27, 73, 78, 57, 46, 90

26, 27, 73, 78, 57, 46, 90

- Range = 64 First quartile = 27 Third quartile = 78
- Range = 90 First quartile = 57 Third quartile = 78
- Range = 57 First quartile = 27 Third quartile = 78
- Range = 64 First quartile = 78 Third quartile = 27

19.

Which statement is true for the data shown on the line plots?

Line Plot A: Line Plot B:

Line Plot A: Line Plot B:

- Both line plots have the same mode.
- Both line plots have the same range.
- Both line plots have the same mean.
- Both line plots have the same median.

20.

Sophie's softball coach records the number of runs earned by each player over the course of a season on the line plot shown.

Which is the better measure of center for the data?

Which is the better measure of center for the data?

- mean
- median

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