Mathematics: The population of scores on the sat forms a normal distribution with μ =500 and σ = 100. if you take a random sample of n =100 what is the probability that the sample mean will be greater than m = 520

The population of scores on the sat forms a normal

Ответ:

moosaw500

13.01.2022

P(M > 520) = 1 - P(M < 520) = 1 - P(z < (520 - 500)/(100/sqrt(100))) = 1 - P(z < (20/(100/10))) = 1 - P(z < 20/10) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275

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Ответ:

kendrickstoudemire20

25.07.2020

Mathematics

H, i think i might know the answer but i'm not exactly

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The population of scores on the sat forms a normal distribution with μ =500 and σ = 100. if you take a random sample of n =100 what is the probability that the sample mean will be greater than m = 520

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