Question

Construct a frequency distribution table for the following weights (in gm)mangoes
using the equal class intervals, one of them is 40-50 (50 not included):
30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37, 53, 55, 65, 70, 73,
74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68.
(i) What is the class mark of the class interval 40-50?
(ii) What is the range of the above weights?
(iii) How many classes are there?

Answer 1

Answer:

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 (40−45), 40 is included but 45 is excluded.

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

Class interval Frequency

30−35 3

35−40 3

40−45 3

45−50 3

50−55 5

55−60 4

60−65 5

65−70 2

70−75 7

Total 35

(a) So, total number of classes is 9.

(b) The highest frequency is 7 and is of the class 70−75.

Answer 2

Answer:

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