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3 years ago

In a certain normal distribution, find the standard deviation σ when μ = 50 and 10.56% of the area lies to the right of 55.

Mathematics

1 answer:

Ivanshal [37]3 years ago

3 0

Answer:

Step-by-step explanation:

P(x > 55) = 0.1056

P(x < 55) = 1 − 0.1056

P(x < 55) = 0.8944

z = 1.25

z = (x − μ) / σ

1.25 = (55 − 50) / σ

σ = 4

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Answer:

Step-by-step explanation:

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