Buffalo Wild Wings ran a promotion called the Blazin' Bonus, in which every $25 gift card purchased also received a "Bonus" gift card for $5, $15, $25, or $100. According to the company, here are the...

Extracted text: Buffalo Wild Wings ran a promotion called the Blazin' Bonus, in which every $25 gift card purchased also received a "Bonus" gift card for $5, $15, $25, or $100. According to the company, here are the probabilities for each Bonus gift card. Let X be the amount of money won on the Bonus gift card. Value x, $5 $15 $25 $100 Probability P, 0.890 0.098 0.010 0.002 (a) Calculate and interpret the expected value of X. (b) Calculate and interpret the standard deviation of X. 2.