Class 9 Practice – Level 2 – Set 2 – Statistics

Total questions: 25

The mean of 6 numbers is 32. If one of the numbers, 28, is excluded, what will be the new mean of the remaining 5 numbers?

Topic: Mean

None

The median of the data set 22, 26, 28, 29, 24, 30, 32, 34, 36 is:

Topic: Median

None

Identify the mode of the data set: 41, 44, 41, 46, 41, 47, 48.

Topic: Mode

None

The range of the data set 75, 85, 80, 95, 100 is:

Topic: Range

None

If the mean of 7 numbers is 18 and the sum of six of the numbers is 102, what is the seventh number?

Topic: Mean

None

The median of the data set 5, 7, 12, 9, 6, 8, 10 is:

Topic: Median

None

What is the mode of the data set: 50, 52, 54, 52, 56, 52, 58?

Topic: Mode

None

In a frequency distribution, the class interval with the highest frequency is called:

Topic: Frequency Distribution

The median class

The modal class

The frequency class

The mean class

None

The mean of 10 numbers is 14. If 4 is subtracted from each number, what will be the new mean?

Topic: Mean

None

10.

The median of the data set 22, 25, 30, 31, 28, 34, 32, 36, 38 is:

Topic: Median

None

11.

Find the mode of the following data set: 14, 16, 14, 18, 20, 14, 22.

Topic: Mode

None

12.

The range of the data set 105, 110, 115, 120, 125 is:

Topic: Range

None

13.

If the mean of a set of numbers is 25, and the sum of the numbers is 200, how many numbers are there in the set?

Topic: Mean

None

14.

The median of the data set 15, 20, 25, 30, 35, 40, 45, 50 is:

Topic: Median

None

15.

What is the mode of the data set: 60, 62, 60, 64, 60, 66, 68?

Topic: Mode

None

16.

In a frequency distribution, the midpoint of a class is called the:

Topic: Frequency Distribution

Class limit

Class interval

Class boundary

Class mark

None

17.

Calculate the range for the data set 14, 18, 22, 26, 30.

Topic: Range

None

18.

The mean of a data set is 40. If each value in the data set is multiplied by 2, what will be the new mean?

Topic: Mean

None

19.

The median of the data set 5, 10, 15, 20, 25, 30, 35, 40, 45 is:

Topic: Median

None

20.

Find the mode of the following data set: 18, 20, 18, 22, 24, 18, 26.

Topic: Mode

None

21.

In a grouped frequency distribution, the lower class boundary is:

Topic: Frequency Distribution

The smallest value that can belong to the class

The difference between the class marks

The midpoint of the class

The sum of the frequencies

None

22.

The range of the data set 55, 60, 65, 70, 75 is:

Topic: Range

None

23.

If the mean of a set of numbers is 50, and the total sum of the numbers is 450, how many numbers are there in the set?

Topic: Mean

None

24.

The median of the data set 18, 20, 22, 24, 25, 26, 28, 30, 32 is:

Topic: Median

None

25.

What is the mode of the data set: 32, 34, 32, 36, 38, 32, 40?

Topic: Mode

None

1 out of 25

Time's up

Class 9 Practice – Level 2 – Set 2 – Statistics

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