Publish On: 2019-05-25

## 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

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

**= 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= 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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