Class 9 Quiz Level 2 (Moderate) – Statistics

Total questions: 20

In a grouped frequency distribution, the class mark is calculated as:

Topic: Frequency Distribution

Deselect Answer

The average of the upper and lower class limits

The difference between the upper and lower class limits

The product of the class limits

The sum of all frequencies

None

Calculate the range for the data set 16, 22, 18, 24, 28.

Topic: Range

Deselect Answer

None

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

Topic: Median

Deselect Answer

None

The median of the data set 45, 50, 60, 55, 65, 70, 75 is:

Topic: Median

Deselect Answer

None

In a frequency distribution, the upper class boundary is:

Topic: Frequency Distribution

Deselect Answer

The largest value that can belong to the class

The difference between the class marks

The average of the class limits

The sum of the frequencies

None

The mean of 7 numbers is 28. If one of the numbers, 35, is excluded, what will be the new mean of the remaining 6 numbers?

Topic: Mean

Deselect Answer

24.5

26.5

None

Find the mode of the following data set: 11, 13, 15, 17, 11, 13, 11.

Topic: Mode

Deselect Answer

None

Find the mode of the following data set: 45, 36, 42, 36, 39, 45, 36.

Topic: Mode

Deselect Answer

None

The range of the data set 85, 90, 95, 100, 105 is:

Topic: Range

Deselect Answer

None

10.

The median of the data set 33, 27, 29, 35, 31, 32, 30 is:

Topic: Median

Deselect Answer

None

11.

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

Topic: Mode

Deselect Answer

None

12.

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

Topic: Median

Deselect Answer

None

13.

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

Topic: Mode

Deselect Answer

None

14.

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

Topic: Mode

Deselect Answer

None

15.

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

Topic: Mean

Deselect Answer

None

16.

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

Topic: Range

Deselect Answer

None

17.

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

Deselect Answer

None

18.

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

Deselect Answer

None

19.

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

Deselect Answer

None

20.

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

Topic: Mode

Deselect Answer

None

1 out of 20

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Class 9 Quiz Level 2 (Moderate) – Statistics

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