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For a certain frequency table which has...

For a certain frequency table which has been partly reproduced here, the arithmetic mean was found to be Rs. 28.07
`{:("Income (in Rs.)",15,20,25,30,35,40),("No. of workers",8,12,?,16,?,10 ):}`
If the total number of workers is 75, then the missing frequencies are

A

14,15

B

15,14

C

13,16

D

12,17

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-APPENDICES (REVISION EXERCISE)-Statistics
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  15. The mean of a data set consisting of 20 observation is 40. If one obse...

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