3 years ago

Please help me asap I need it thanks

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

8 0

Answer: I think (3) is it

Step-by-step explanation:

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Step-by-step explanation:

Here

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Substituting values

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$P(z\leq 2)=0.9772\\P(z\leq -2)=0.0228\\P(-2\leq z\leq 2)=P(z\leq 2)-P(z\leq -2)\\P(-2\leq z\leq 2)=0.9772-0.0228\\P(-2\leq z\leq 2)=0.9544\\$

So the probability that the sample mean will lie within 2 values of μ is 0.9544.

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