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Read values from a histogram

DIFFICULTYintrostandardchallengeexam
Question 1 of 8

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Histogram of Movie length (minutes), columns from 80–89 to 140–149, with frequency on the vertical axis. Frequencies: 80 to less than 90: 8; 90 to less than 100: 5; 100 to less than 110: 3; 110 to less than 120: 1; 120 to less than 130: 1; 130 to less than 140: 1; 140 to less than 150: 1.024681080100120140Movie length (minutes)Frequency

The values are recorded as whole numbers. Class labels list the included records; each next lower boundary begins a new class

(a)1 mark

What is the frequency for the interval 120–129?

(b)1 mark

Which interval is the modal interval?