Question

Section-
17. Case Study I: In a survey to study obesity among students at undergraduate level,
the following data gives the information collected. Based on it answer the questions
that follow:
Wt(Kg) 40-45
No.of 4
Students
50-55
45-50
11
55-60
15
60-65
12
65-70
9
70-75
3
6
a) Mean of the above data is
55 (ii) 57.35 (iii) 57.42
(iv) 58
b) Upper limit of the median class is
(i) 50
(ii) 55 (iii) 60. (iv) 65
c) If 60 Kg and above are considered obese, the number of obese students is
(0) 12
(ii) 24. (ii) 15
(iv) 25
d) If ‘more than" cumulative frequency is written then cumulative frequency of the
class 55-60 is
15 (ii) 27 (iii) 39 (iv) 36
e) The mode of the above data is
(1) 55 (ii) 60.25
(iii) 55.75 (iv) 58.75​

Answer 1

Answer:

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