3 Answered Questions for the topic Statistics, Standard Deviations

Statistics, Standard Deviations Statistics

10/06/18

A normal distribution has a mean equal to 10 and a standard deviation equal to 1. What is the z-score cutoff for the top and bottom 2.5% of this distribution?
A normal distribution has a mean equal to 10 and a standard deviation equal to 1. What is the z-score cutoff for the top and bottom 2.5% of this distribution?
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Statistics, Standard Deviations

04/14/18

Standard Deviation
Weights of packages of M&M candies are Normally distributed with the average weight of 0.91g and the standard deviation of 0.15g. If a random sample of 32 packages is selected, what is the... more
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Statistics, Standard Deviations

02/28/18

My question is in the description:)
suppose that grade point average is of undergraduate students at one University a bell shaped distribution with a mean of 2.52 and a standard deviation of 0.42 using the empirical rule, what... more
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