Answer:
P(x >16.5) = 0.3372
Explanation:
Given data:
P = 0.07
n = 166
Available vegetarian dinner is 16
let is number of short vegetarian meals
= binomial distribution (166, 0.09)
n(1-p) = 166(1-0.09) = 151.06
Both value of np and n(1-p) greater than 5
x - normal distribution with
mean = np = 14.94
standard deviation
[/tex]= \sqrt{14.94(1-0.09)}[/tex]
standard deviation = 3.687
Find P(x> 16) i.e P(X>16 ) = P(x >16.5)
P(x >16.5) = 1 - P(x <16.5)
= 1 - P{z< 0.425}
= 1 - 0.6628
P(x >16.5) = 0.3372