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Dima020 [189]
3 years ago
12

What is the probability that a randomly selected Californian age 18 to 64 exercises for at least 150 minutes per week? Illustrat

e by noting all relevant details on the normal curve below, and shading the appropriate region.
HELP!! PLEASE!

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
8 0

Answer:

Step-by-step explanation:

This is a normal distribution question with

Mean = 153

Standard Deviation= 10

Since we know that score

Z_{score}=\frac{x- \mu}{ \sigma }

a)

P(x > 150.0)=?

The z-score at x = 150.0 is,

Z = \frac{150-153}{10} \\\\Z=-0.3

This implies that

P(x > 150.0) = P(z > -0.3)

= 1 - P(z < -0.3) = 1 - 0.3820885778110474

P(x > 150) = 0.6179

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