Orders for a computer are summarized by the optional features that are requested

Question

Orders for a computer are summarized by the optional features that are requested. The proportion of orders with no optional features is 0.35. The proportion of orders with one optional feature is 0.27. The proportion of orders with more than one optional feature is 0.38.

(a) What is the probability that an order requests at least one optional feature? Round your answer to two decimal places (e.g. 98.76).
(b) What is the probability that an order does not request more than one optional feature? Round your answers to two decimal places (e.g. 98.76).

Explanation / Answer

a) Probability that an order requests at least one optional feature

P(atleast one optional feture) = 1- P( proportion of orders with no optional features)

=1-0.35 = 0.65

b) probability that an order does not request more than one optional feature

P(not more than 1 optional feature) = 1- P(proportion of orders with more than one optional feature)

=1-0.38 = 0.62

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