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3 years ago

Please help last question

Mathematics

2 answers:

Otrada [13]3 years ago

5 0

Answer:

Step-by-step explanation:

"given that it's a junior" means to only look at juniors.

From the table, under junior, there are 2 males and 6 females. 2 + 6 = 8. The total number of juniors is 8.

p(female given junior) = 6/8 = 3/4 = 0.75 = 75%

Answer: 75

timurjin [86]3 years ago

3 0

Answer:

Step-by-step explanation:

"given that it's a junior" means to only look at juniors.

From the table, under junior, there are 2 males and 6 females. 2 + 6 = 8. The total number of juniors is 8.

p(female given junior) = 6/8 = 3/4 = 0.75 = 75%

Answer: 75

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otez555 [7]

Answer:

empirical rule: 81.5%

table or calculator: 81.9%

Step-by-step explanation:

The lower limit of the life range of interest has a z-score of ...

z = (x -μ)/σ = (20,000 -30,000)/5,000 = -2

The upper limit has a z-score of ...

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<u>Empirical rule solution</u>

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The probability the tire has a life in the desired range is about 81.5%.

<u>Calculator solution</u>

A probability calculator for the Normal distribution tells you that ...

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