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  3. after analyzing several months of sales data, the

After analyzing several months of sales data, the owner of an appliance store produced the following...

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Basic Math

After analyzing several months of sales data, the owner of anappliance store produced the following joint probabilitydistribution of the number of refrigerators and stoves soldhourly

   0    1 2 Stoves

0    0.08 0.14    0.12    0.34

1    0.09 0.17 0.13    0.39

2    0.05    0.18    0.04 0.27

REF 0.22    0.49    0.29    1


b. What are the laws for a discrete probability densityfunction?

c. If a customer purchases 2 stoves, what is the probability theywill also purchase two refrigerators?

d. What is the average number of refrigerators purchased?

e. What is the variance in the number of refrigeratorspurchased?

f. Are the sale of stores and refrigerators independent?

g. What is the conditional probability distribution for sales inrefrigerators if the customer did not purchase a stove?

h. What is the expected value and variance for sales inrefrigerators, if the customer did not purchase a stove?

Answer & Explanation Solved by verified expert
4.3 Ratings (966 Votes)
given thatrefstoves012total PYy000801401203410090170130392005018004027total PXx0220590291let X is number of stoves while Y is    See Answer
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