Computing probability of package delivery service

Reference no: EM1320310

Q1) A sales rep for national clothing company makes 4 calls per day. Based on historical records, given probability distribution explains number of successful calls each day:

Successful Calls	Probability
0	0.10
1	0.30
2	0.30
3	0.20
4	0.10

Expected number of successful sales calls per day is:

i) 2.00

ii) 1.15.

iii) 1.90.

iv) 2.50

Q2) Package delivery service claims that no more than 5% of all packages arrive at address late. Supposing that conditions for binomial hold, if sample of size 10 packages is randomly chosen, and 5 percent rate holds, determine the probability that exactly 2 packages in the sample arrive late?

i) 0.0746

ii) 0.9884

iii) 0.2347

iv) 0.0439

Reference no: EM1320310

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