Question

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Stats SB ch2 pg 2.25 Q.2.50

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Answer 1

Answer:

Number of wage earner in firm A=586

Mean of monthly wage of firm A=Rs5253

Mean of monthly age of firm A =

No. of wage earners in firm A

Total amount paid

5253=

586

Total amount paid

Total amount paid by Firm A =5253×586

Number of wage earner in firm B=648

Mean of monthly wage of firm B=Rs5253

Mean of monthly age of firm B =

No. of wage earners in firm B

Total amount paid

The mean of monthly wages of both the firms is same i.e.5253. So, the firm with greater standard deviation will have more variability.

Thus firm B has greater variability in the individual wages

Answer 2

Answer:

Total amount paid = Rs. 5253 ................