In a standardized IQ test, scores are normally distributed with a mean score of 100 and a standard deviation of 15. Find the pro

Question

2 years ago

7

bability that a randomly selected person has an IQ score higher than 125.

1 answer:

Zanzabum · Answer 1 · 2022-06-22T07:23:06+03:00

Zanzabum2 years ago

8 0

Answer:

0.0475

Step-by-step explanation:

First find the z-score.

z = (x − μ) / σ

z = (125 − 100) / 15

z = 1.67

Use a calculator or chart to find the probability. Using a chart:

P(Z > 1.67) = 1 − P(Z < 1.67)

P(Z > 1.67) = 1 − 0.9525

P(Z > 1.67) = 0.0475