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mihalych1998 [28]
3 years ago
7

a normal distribution has a mean of 10 and a standard deviation of 1 what is the probability of selecting a number between 8 and

11
Mathematics
1 answer:
rusak2 [61]3 years ago
5 0

Answer:

0.815

Step-by-step explanation:

First, find the z-scores.

z = (x − μ) / σ

z₁ = (8 − 10) / 1

z₁ = -2

z₂ = (11 − 10) / 1

z₂ = 1

P(-2 < Z < 1) = P(Z < 1) − P(Z < -2)

Use a chart, calculator, or the empirical rule to find the probability.

Using the empirical rule:

P(-2 < Z < 1) = 0.84 − 0.025

P(-2 < Z < 1) = 0.815

Using a chart:

P(-2 < Z < 1) = 0.8413 − 0.0228

P(-2 < Z < 1) = 0.8185

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vfiekz [6]

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39

Step-by-step explanation:

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subtract

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x-10=29

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The Niagara Falls ferris wheel has a diameter of 48 meters, and one revolution takes 2.25 minutes to complete. Riders can see Ni
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<h3>How to interpret Cycle Graphs?</h3>

From the diagram attached, we can say that;

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h(t) = -24cos (8π/9)t + 24.5

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