Cumulative Frequency Table

The table shows the age distribution of a group of Maths Tutors. Find the value of x.

• 22

• 12

• 11

• 45

Find the value of y.

• 11

• 45

• 55

• cannot be determined

Which tutorial centre has a higher upper quartile?

• centre A

• centre B

• Both centres have the same upper quartile.

• Cannot be determined.

Estimate the mean distance 80 students are from their mobile phone at any given time. (using your calculator)

• 0m

• 29.5m

• 31.5m

• 33.5m

Approximately how many items were longer than 34 cm?

• None

• 8

• 7.5

• 7

What is the Lower Quartile Length?

• 28 cm

• 30 cm

• 33 cm

• 20 cm

What is the Upper Quartile Length?

• 28 cm

• 30 cm

• 33 cm

• 20 cm

Find the mean number of pets. You may need to copy out the table with an extra column.

• 0.87

• 1.55

• 1.68

• 1.45

What is the median length?

• 40.5 cm

• 30 cm

• 24.5 cm

• 32 cm