A national trend predicts that women will account for half of all business trave

Question

A national trend predicts that women will account for half of all business travelers in the next few years. To attract these women business travelers, hotels are providing more amenities that women particularly like. A recent survey of American hotels found that 70% offer hairdryers in the bathrooms (binomial distribution). Consider a Random and independent sample of 20 hotels. What is the probability that all of the American hotels offer hairdryers in the bathrooms?

a. (0.70)^20

b. 0.3

c. 20!

d. (20)^0.7

Explanation / Answer

Probability that there is hair dryer is one bathroom is 0.7

Probability that there is hair dryer is 20 bathroom is=(0.70)^20

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