Answer to Question #323192 in Statistics and Probability for Sarah

Statistics and Probability

Question #323192

Understanding the Z-score

Solve the following problem.

1. X = 50, s = 5, X(mean) = 40

2. X = 40, o = 8, u(mean) = 52

3. X = 36, s = 6, X(mean) = 28

Expert's answer

1) "z=\\frac{50-40}{5}=2."

2) "z=\\frac{40-52}{8}=-1.5."

3) "z=\\frac{36-28}{6}=1.33."

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