Let's see how well you do on tests

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Questions

The following questions were asked by visitors named Let's see how well you do on tests.

Answers

The following answers were posted by visitors named Let's see how well you do on tests.

SD : sd / sqrt(n) = 30/5 = 6 mU : 150 avg (x) : 4000 / 25 = 160 p(x > 4000) = 1 - phi[(160 - 1/2 - 150) / 6] Use calculator to calculate phi.
8 years ago