The number of cartoons watched by Mrs. Kelly's first grade class on Saturday morning along with...
The number of cartoons watched by Mrs. Kelly's first grade class on Saturday morning along with the percentages of the class who watched the number of cartoons is shown below.
X 0 1 2 3 4 5
P(X) .1 .2 .25 .3 .1 .05
Answer both of the following:
A. Find the mean of the probability distribution.
B. Find the standard deviation of the probability distribution.
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The number of cartoons watched by Mrs. Kelly's first grade class
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Professor Smith took a sample of 196 students from her morning class and a sample of 171 students from her evening class. On Exam 1, all those sampled from the morning class got a 66 while those sampled from the evening class averaged a 67 with a variance of 178. If Professor Smith combines these two samples. Question 2 What is the combined Exam 1 average? Question 3AWhat is the combined Exam 1 median? Question 3B What is the shape...
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