Q1) A box contain 10 red and 7 blue balls. Two balls are drown one by cone. Find the probability that the second ball is red given that the first ball was blue. (Round answer to four decimal places)...

Q1) A box contain 10 red and 7 blue balls. Two balls are drown one by cone. Find the probability that the second ball is red given that the first ball was blue. (Round answer to four decimal places) if The drown is with replacement

Q2) Find the sample variance of the following sample 11 1314,9 8 Round your answer to two decimal places