G Let X be a continuous random variable with a known pdf of ( ) λx f x λe  for x  0 and λ being a constant. If the median value of X is 1/3, then find the value of λ . Give your answer as a decimal rounded to four places (i. e. X.). Hint: You can find the CDF Fx( ) , and then recall that the median is the value p x such that ( ) 0.50