mean

Another word for mean is...

• sum

• product

• average

• equation

To find the mean of a set of numbers you...

• multiply all the numbers then divide by ho many numbers are in the set

• add the numbers together, then divide by how many numbers are in the set

Calculate the mean.

16, 5, 7, 12

• 9

• 6

• 12

• 10

Find the mean of these numbers:
2, 57, 38, 42, 6

• 29
• 38
• 50
• 145

The height of three basketball players is 210 cm, 220 cm and 191 cm.

What is their average height?

• 210

• 207

• 220

• 200

Find the mean of the numbers below:

4, 9, 7, 10, 5

• 5

• 6

• 7

• 8

Find the mean of the numbers below:

20, 30, 24, 32

• 26.5

• 27.5

• 27

• 27.5

Find the mean of the numbers below:

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

• 5

• 6

• 7

• 8

To find the value of a missing number when given the mean you...

• Multiply the mean by the amount of numbers you have, add the numbers that you do have, then find the difference.

• Multiply all the numbers together then divide by the mean.

The mean of five numbers is 8.2.

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

Work out the fifth number.

• 10

• 11

• 1

• 3