question archive (CO 3) Sixty-four percent of those that use drive through services believe that the employees are at least somewhat rude
(CO 3) Sixty-four percent of those that use drive through services believe that the employees are at least somewhat rude
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(CO 3) Sixty-four percent of those that use drive through services believe that the employees are at least somewhat rude. If you asked 87 people who use drive through services if they believe that the employees are at least somewhat rude, what is the probability that at most 50 say yes?
Group of answer choices
0.124
0.015
0.915
0.039
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Answer:
0.124
Explanation:
given , n = 87 , p = 0.64
We have to find P( x ?≤? 50 )
X follows Binomial distribution with n = 87 and p = 0.64
Using Excel function , " =BINOMDIST( x, n , p , 1 )"
P( x ?≤? 50 ) =BINOMDIST(50, 87, 0.64, 1 )= 0.124
