According the the american hotel and motel association, women are expected to account for half of all business travelers by the year 2002. the ahma found tht 80% offer hair dryers in the bathrooms. consider a sample of 20 hotels. find the probability that more than 9 but less than 17 of the hotels in the sample

 0.71221

Step-by-step explanation:

We know that for binomial distribution :-

, where p is the proportion of success in each trial and n is the sample size.

Given : p=0.80  ;   n=20

Then,

Let X be the binomial variable.

z-score :

For x=9

For x=17

Then, the probability that more than 9 but less than 17 of the hotels in the sample is given by :-

Hence, the probability that more than 9 but less than 17 of the hotels in the sample = 0.71221

19.side- angle- side

20. angle- side- angle

step-by-step explanation: