Question

The weights (in Kg) of 30 students of a

class are :

39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45,

46, 38, 37, 31, 30, 39, 41, 41, 46,36, 35, 34,

39, 43, 32, 34, 29, 26

Prepare a frequency distribution table using

tally mark with one of class interval as 30-

35 (35 not included)

and answer the following questions .

(i) Which class interval has least

frequency ?

(ii) Which class interval has maximum frequency​

Answer 1

Step-by-step explanation:

In this table class intervals are such that Lower limit is included and upper limit is not included in the class.

That means In interval (30−35), 30 is included but 35 is excluded.

And for frequency we counted how many times number from the interval occurs in given data.

 Class intervalFrequency   25−30 2 30−35 7 35−40 11 40−45 7 45−50 3 Total 30

(I) The least frequency is 2 and is in the class 25−30

(ii) The maximum frequency is 11 and is in the class 35−40.

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