2) write lower and upper limits of 5 - 10 in the classes 1-5,5-10,10-15,15-20.
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Answer:
Step-by-step explanation:
The cumulative frequency Table is:-
Class Frequency Cumulative frequency
0-5 10 10
5-10 15 25
10-15 12 37
15-20 20 57
20-25 9 66
Here,
2
N
=
2
66
=33
Thus 37 is just greater than 33,
∴ The median class is "10−15."
The lower limit of the median class is 10.
Modal class = class with maximum frequency.
∴ Modal class is 15−20.
The lower limit of the modal class is 15.
Sum of lower limits of median class and modal class = 10+15=25
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