It is known that a certain basketball player will successfully make a free throw 86.43% of the time. Suppose that the basketball player attempts to make 13 free throws. What is the probability that the basketball player will make at least 11 free throws?

 

Let $X$ be the random variable which denotes the number of free throws that are made by the basketball player. Find the expected value and standard deviation of the random variable.

  $E(X) =$
          $~ \sigma =$