Averages and Grouped Data

Estimate the mean weight

• 63.5

• 65

• 67.2

• 70.1

Estimate the mean time

• 8.3

• 8.8

• 9.3

• 9.8

Estimate the mean height

• 11.56

• 12.15

• 12.26

• 12.49

Find the mean waiting time to one d.p.

• 18.0

• 16.9

• 42.5

• 34.6

Your grade in Statistics are 88, 91 and 90.

What should be your next grade to get an average of 90?

• 91

• 89

• 90

• 88

What is the smallest possible range of heights?

• 40cm

• 60cm

• 80cm

• 100cm

Find the mean from the following table...

You may need to copy the table out and add columns...

• 13

• 14

• 13.3

• 14.2

Find the estimated mean from the following table... You may need to copy the table out and add columns...

• 28.5

• 31.5

• 30.5

• 29.5

Find the mean from the following table...

You may need to copy the table out and add columns...

• 11.24

• 10.54

• 11.84

• 10.56

Find the mode from the following table...

• 15

• 13 and 14

• 13

• 14