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9. Assume the weight, W, of a randomly selected adult has a normal distribution with a mean
of 175 pounds and a standard deviation of 10 pounds.. Find the probability, P(W < 190), that
a randomly selected adult weighs less than 190 pounds.

  • Statistics - ,

  • Statistics - ,

    Another method.

    Z = (score-mean)/SD

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

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