Question

TABULATION OF DATA AND ITS REPRESENTATION.

1. The first class interval of groups data is given write four more class intervals yourself.
$30 - 35$
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Answer 1

Answer:

30-35

35-40

40-45

45-50

50-55

Answer 2

Step-by-step explanation:

30-35

Given class interval :

4−11, 12−19, 20−27, 28−35, 36−43

The next two class intervals are 44−51, 52−59

length of each class interval is 8.

Class marks are :

Class Interval Class marks

4−11 7.5

12−19 15.5

20−27 23.5

28−35 31.5

36−43 39.5

44−51 47.5

52−59 55.5