Cumulative Frequency Curves

Which of these could be a cumulative frequency graph?

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The graph shows the masses of some pumpkins grown on an allotment. What is the median?

• 15

• 14

• 10

• 18

What is the median length?

• 40.5 cm
• 30 cm
• 24.5 cm
• 32 cm

Find the cumulative frequencies.

• 28, 56, 84, 100

• 28, 58, 70, 72, 74, 76

• 33%, 37%, 20%, 7%, 7%, 7%

• 28, 30, 12, 2, 2, 2

What is the median score on the test?

• 50

• 55

• 40

• 60

How many students scored 40% or below on the test?

• 21

• 22

• 20

• 15

Find the number of passengers who waited for the bus for 15 min or less.

• 6

• 10

• 20

• 24

Find the number of patients who waited for more than 80 min for a doctor.

• 12

• 16

• 62

• 64

• 8

• 10

• 22

• 30

What percent of the college students surveyed have less than $5000 in debt?

• 25%

• 50%

• 70%

• 100%