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Q1) Companies which design furniture for elementary school classrooms make a variety of sizes for kids of various ages. Assume heights of kindergarten children can be explained by Normal distribution with mean of 37.2 inches and standard deviation of 2.1 inches.

a) What fraction of kindergarten kids must company expect to be less than 35 inches tall?

b) In what height interval must the company expect to determine middle 70% of kindergarteners?

c) At least how tall are the biggest 15% of kindergarteners?

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