12.) From the graph ,we can observe that the approximate cumulative frequency of :
19.5 is between 30 to 40
and
24.5 is between 65 to 70
so we can say that the cumulative fequency of 24 hours will be slightly less than 70.
By looking on the options 63 is the best fit
Ans: (C)
13.) Least weight limit of candies = 2.35 grams
Upper weight limit of candies = 4.75 grams
We want 12 classes in the frequency table
The width of each interval = (4.75-2.35)/12
= 0.2
So, the first interval will be = 2.35 - (2.35+0.2)
= 2.35 - 2.55
Ans: (D)
A) (a) 4 B (a)3 C) (a) 3 (b) 9.5 (c)7.5-11.5 (b) 9.5 (c) 7.5-11.5 (b)...
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