Q23 of 41 Page 5

Look at the histogram below and answer the questions that follow.


(a) How many students have height more than or equal to 135 cm but less than 150 cm?


(b) Which class interval has the least number of students?


(c) What is the class size?


(d) How many students have height less than 140 cm?

(a) Number of students who have height more than or equal to 135 cm but less than 150 cm = 14 + 18 + 10 = 42


(b) Class interval that has the least number of students = 150–155


(c) Class Size = Upper Limit – Lower Limit


⇒ Class Size = 130 – 125


⇒ Class Size = 5


(d) Students that have height less than 140 cm = 6 + 8 + 14 = 28

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