Scores are normally distributed with mean u=360 and standard deviation o=60.
a.) what is the probability that a score is less than 220?
b.) what percent of scores are between 272 and 458?
c.) what percent of scores are greater than 400?
d.) what data value has 33% of the scores below it?
e.) if a random sample of size 144 is chosen, what is the probability that the sample mean is less than 357?
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