A boy has his weekly allowance determined every Sunday by drawing one paper bill randomly from an urn containing 5 bills in total: four $1 bills, and one $10 bill. $1 $1 $1 $1 $10 His parents refill...

Let Xi be the allowance the boy gets in the ith week. Assuming a year has 52 weeks, what are the expected vaule, variance, and standard deviation of the total amount of allowance that the boy can get in a year X1+X2+X3...X52?

Extracted text: A boy has his weekly allowance determined every Sunday by drawing one paper bill randomly from an urn containing 5 bills in total: four $1 bills, and one $10 bill. $1 $1 $1 $1 $10 His parents refill the urn every week, so the content of the urn stays the same every week.