Quiz about Year 9 - Mean

Question 1

Find the mean of the numbers below:

4, 9, 7, 10, 5

Accepted Answer

7

Answer

5

Answer

6

Answer

8

Question 2

Find the mean of the numbers below:

2, 8, 6, 3, 12, 7, 4

Accepted Answer

6

Answer

5

Answer

7

Answer

8

Question 3

Find the mean of the numbers below:

3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1

Accepted Answer

2

Answer

3

Answer

1

Answer

4

Question 4

Find the mean of the numbers below:

1, 8, 7, 5, 6, 4, 7, 6

Accepted Answer

5.5

Answer

5

Answer

6

Answer

6.5

Question 5

Find the mean of the numbers below:

20, 30, 24, 32

Accepted Answer

26.5

Answer

27.5

Answer

27

Answer

27.5

Question 6

Find the mean of the numbers below:

12, 8, 14, 5, 1, 3, 0, 8, 10, 11

Accepted Answer

7.2

Answer

8

Answer

9

Answer

7.4

Question 7

Find the mean of the numbers below:

1.4, 2.8, 2.4, 2.5, 2.8, 3.1, 1.1

Accepted Answer

2.3

Answer

2.2

Answer

2.4

Answer

2.1

Question 8

The mean of four numbers is 10.

Three of the numbers are 9, 11 and 7.

Work out the fourth number.

Accepted Answer

13

Answer

9

Answer

11

Answer

15

Question 9

The mean of six numbers is 5.

Five of the numbers are 6, 6, 5, 3 and 1.

Work out the sixth number.

Accepted Answer

9

Answer

4

Answer

4.2

Answer

7

Question 10

The mean of five numbers is 8.2.

Four of the numbers are 8, 10, 12 and 10.

Work out the fifth number.

Accepted Answer

1

Answer

10

Answer

11

Answer

3

Question 11

Mr Holland gives his class a test. The results are:

34%, 44%, 75%, 21%, 98%, 86%, 71%, 76%, 63%, 55%

How many students scored above the mean percentage?

Accepted Answer

6

Answer

4

Answer

5

Answer

7

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