Question

07 In an entrance examination , for admission to the Enginee-
sing course of a certain universal the top 50 students,
who are were selected , got the following percentage of
marks in on aggregate

95 92 91 88
70 72 76
68 67 67 66
58
60
55 55 55 56.

82 86 87
87 88
77 79 79 79 78 78
65
63 63
63 63 64
60 60 61 62
62 62
57 54 53 52 52 50
59 60 90 77
(1) Obtain the range of the distribution of percentage of marks
(2) Classify the data in class intervals as :
(a) 45-55, 55-65, 65-75,....
(b) 50-55, 55-60, 60-65,.....
(3) examine the error of grouping in each case.​

Answer 1

Answer:

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