# statistics

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For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation
3.0, 3.4, 2.6, 3.3, 3.5, 3.2

• statistics -

• statistics -

You want to estimate the mean of a population within + 3 with 90 % confidence If the population
standard deviation is  = 8, how large of a sample is needed?

• statistics -

1558

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