The lifetime, in years, of a certain type of fuel cell is a random variable with probability density function k x>0 f(x)={(x+3)* Using i. Determine the value k so that f(x) becomes a pdf. Using cumulative distribution function (CDF) method finds the probability that a fuel cell lasts more than 5 years? Find the coefficient of variation of x+3 ii. iii.

Question 31 > Suppose you flip two coins. What is the probability of getting at most one heads? Give your answer as a reduced fraction.

Solve it correctly.

hi solve 2, 3&6

Solve c,d

Please give solution in correct and step by step detailed format thanku Don't give solution in image format A high school baseball player has a 0.151 batting average. In one game, he gets 9 at bats. What is the probability he will get at least 3 hits in the game?