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Consider the following distribution of the number of homework given out by a teacher during a given week of the school year.

x 0 1 2 3 4 5

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p(x) 0.09 0.23 0.29 0.16 0.21 0.02

Find probability teacher gives 3 homework this week.

Find probability teacher gives no more than 2 homework this week.

Find the mean of distribution

Find Standard Deviation of distribution