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QUESTION 4 The number of laptops sold per day by Karisma Technology Berhad is given by...

QUESTION 4

The number of laptops sold per day by Karisma Technology Berhad is given by the following probability distribution function.

Number of laptops (x)

0

1

2

3

4

P(X=x)

0.2

0.3

a

a

b

If the mean of sales per day is 1.7, find

  1. the values of a and b.
Math   Statistics-And-Probability   
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