• Sketch and label the curve and shade the area indicated in the example. • Show any scratch work/ make note of, or list the function(s) that you used, such as "normal distribution" or "inverse cdf," "Complement rule," etc. Don't worry about the format for this, I want you to have these notes for the final :) • Round your answer to four places after the decimal. • You may use the desmos normal distribution calculator. 1. Americans receive an average of 17 Christmas cards each year. Suppose the number of Christmas cards is normally distributed with a standard deviation of 6. a) If an American is randomly chosen, find the probability that this American will receive 18 or less Christmas cards this year.

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Q: Could you write this part for a better understanding? Thank you.

A: the expected value is computed as follows

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A: Given X1=226 n1=397 X2=129 n2=269

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