2 years ago

Probability distribution part 2

Mathematics

1 answer:

steposvetlana [31]2 years ago

7 0

Answer:

b. -0.862

Step-by-step explanation:

The only answer choice with a minus sign is B, which is the correct choice.

When the value of interest is below the mean (2800 is below 3550), the z-score will be negative:

z = (2800 -3550)/870 = -750/870 ≈ -0.86207 ≈ -0.862

_____

As always, z is computed as ...

Z = (X -μ)/σ

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Step-by-step explanation:

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Probability distribution part 2​

Probability distribution part 2