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the scores for makes in critical reading portion of the stat are normally distributed with a...

the scores for makes in critical reading portion of the stat are normally distributed with a mean of 498 and a standard deviation of 116.
a.
find the probably that a randomly selected person scores higher than 700.

b.
find the probability that a random selected person scores Less than 600

d. find the probability that the mean sat scores for a random sample of size
20 is less than 450.
Math   Statistics-And-Probability   
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Let X denote the scores

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