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Quiz 09.13.2012

Quiz 09.13.2012. Plot a set of points that would have a negative correlation. Suppose the number of jellybeans you get in a bag of jellybeans is normally distributed with mean = 171 and standard deviation = 12 . What percent of jellybean bags contain between 148 and 179 jellybeans?. # 1.

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Quiz 09.13.2012

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  1. Quiz 09.13.2012 • Plot a set of points that would have a negative correlation. • Suppose the number of jellybeans you get in a bag of jellybeans is normally distributed with mean = 171 and standard deviation = 12. What percent of jellybean bags contain between 148 and 179 jellybeans?

  2. # 1 Quiz 09.13.2012

  3. # 2 • First draw a picture (should look something like the minitab plot below, but not in z scores scale) • The next thing we do is find the z scores. • We know2. • -1.917 • Now, either using minitab or a table, we find the percentage. • We get 0.7199 or 71.99%which is ~ 72%. • Minitab plot to the right.

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