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Vladimir [108]
3 years ago
15

A sign on the pumps at a gas station encourages customers to have their oil checked, and claims that one out of 8 cars needs to

have oil added. If this is true, what is the probability of each of the following:
a) Exactly three out of the next eight cars needs oil. Probability =
b) At least three out of the next eight cars needs oil. Probability =
c) At most 6 out of the next 8 cars needs oil. Probability =
Mathematics
1 answer:
photoshop1234 [79]3 years ago
6 0

Answer:

0.0561,0.0673,0.999997

Step-by-step explanation:

Given that a sign on  the pumps at a gas station encourages customers to have their oil checked, and claims that one out of 8 cars needs to have oil added.

X- no of cars that need oil in a sample of 8 cars is binomial with p = 1/8

since each car is independent of the other and there are only two outcomes.

a) Exactly three out of the next eight cars needs oil.

Probability = P(X=3) =0.0561

b) At least three out of the next eight cars needs oil.

Probability = P(X\geq 3)\\= 0.0673

c) At most 6 out of the next 8 cars needs oil.

Probability =P(X\leq 6)\\=0.999997

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<h3>What is Heigth?</h3>

Height refers to the vertical distance between the top and bottom of something.

Height measures the length of some objects or persons vertically to determine whether it is high or low, according to some ascertained criteria.

<h3>Data and Calculations:</h3>

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Learn more about height measurements at brainly.com/question/73194

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Assume that the height of the coach from his shoulder to the head is 10.6 inches.

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