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Publish On: 2019-03-19

ally

Total Post: 571

Question: A dealer in refrigerators estimates from his past experience the probabilities of his selling refrigerators in a day. These are as follows:


 

Reply On: 2013-07-16

Gaurabh Raghav

Total Post: 33

ANS: A dealer in refrigerators estimates from his past experience the probabilities of his selling refrigerators in a day. These are as follows:


 

Mean number of refrigerators sold

= 0 × 0.03 + 1 × 0.2 + 2 × 0.23 + 3 × 0.25 + 4 × 0.12 + 5 × 0.10 + 6 × 0.07

= 0 + .2 + .46 + .75 + .48 + .5 + .42

= 2.81


Hence the mean number of refrigerators sold in a day is 3

 

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