A company makes Citi bikes. 95% (i. e., 0.95) pass final inspection. Suppose that 5 bikes are randomly selected. a. What is the probability that exactly 4 of these 5 sports bikes pass final inspection?
b. What is the probability that less than 3 of these 5 sports bikes pass final inspection?

Hi myself Shrushtee.

Step-by-step explanation:

Given,

p=0.95

n=5

1-p = q =1-0.95=0.05

a)Probability that exactly 4 of these 5 sports bikes pass final inspection =0.2036

b)Probability that less than 3 of these 5 sports bikes pass final inspection =0.0012

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let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt