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alexandroperez13
07.10.2021 •
Mathematics
9. Scores on the SAT form a normal distribution with a mean of 500 and a standard deviation of 100.
a.)What is the minimum score necessary to be in the top 20% of the SAT distribution?
b.) Find the range of values that defines the middle 80% of the distribution of SAT scores?
10. For a normal distribution, find the z-score that separates the distribution as follows:
a.) Separate the highest 30% from the rest of the distribution?
b.) Separate the lowest 40% from the rest of the distribution?
c.) Separate the highest 75% form the rest of the distribution?
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Ответ:
gorgeous
Step-by-step explanation:
the eyes are so big
the frown is glorious