σ6 .   (a) What proportion of the population is less than 18 ? (b) What is the probability that a randomly chosen value will be greater than 6 ? Round the answers to four decimal places.

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Q: how did you find the standard deviation to be 1.2. explain clearly?

A: Here we have to explain the how we get standard deviation is 1.2

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A: It is given that  Mean, μ = 500 Standard deviation, σ = 51

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A: Given n=81 P=0.85

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A: a.Suppose the random variable X defines the baby kittens’ weight.

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A: Given, x = 40 μ = 21σ = 11

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A: Given information are,Let, (a) x=200, μ=225, σ=10(b) x=1, μ=−1, σ=2(c) x=0, μ=−400, σ=200(d) x=12,…

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A: Z score = +1.5 Mean = 30 Standard deviation = 6

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