You are drawing 10 cards from a standard deck with replacement find the expected value of sum?

Then now say your randomly drawn cards are X1,X2.....X10 then estimate the Expected value of |X1+X2...+X10-70|?

For first the answer is 70 obviously by linearity of expectations. And for second you have to use CLT approx and then you will require the expected value of truncated standard normal to quickly estimate.

Tips: To prepare practice estimation and probability problems