8
7. Classify the following data taking class-interval as 8 and having one
class 21–28.
43, 44, 31, 40, 12, 21, 28, 39, 24, 47, 30, 10, 24, 19, 8,
57, 54, 50, 56, 19, 29, 40, 30, 60, 38, 28, 26, 45, 52, 38
Answers
Answer:
The class interval (40−49) has the highest frequency and the class interval (90−99) has the lowest frequency.
(ii) In the class interval (30−39), the lower limit is 30 − 0.5 = 29.5 and the upper limit is
39 + 0.5 = 39.5.
(iii) The range of the given distribution is 97− 32 = 65.
Answer:
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