Construct the frequency table — task. Maths CBSE Live product, Class 10.

Construct a frequency distribution of less than type for the following data.

Class interval	Cumulative frequency
Less than 15	30
Less than 30	39
Less than 45	41
Less than 60	57
Less than 75	77
Less than 90	100

Answer:

Class interval	Frequency
$0 - 20$
$20 - 40$
$30 - 45$
$45 - 60$
$60 - 75$
$75 - 90$

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