mackneider mackneider

25-04-2022
Mathematics

contestada

A certain flight arrives on time 80

percent of the time. Suppose 131

flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that
(a) exactly 103

flights are on time.
(b) at least 103

flights are on time.
(c) fewer than 98

flights are on time.
(d) between 98

and 117
,
inclusive are on time.

Respuesta :

SkiQueen SkiQueen

25-04-2022

Answer:

B at least 103 flights are on time. :)

Step-by-step explanation:

First we need to turn the percentage into a decimal :)

131 x 0.80 = 104.8

The answer should be B at least 103 flights are on time.

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