0 Question 6 v Suppose that the PDF curve for CRV X is shown above. What is the variance? Round to two decimals if needed. 0 Question 14 v Suppose that the number of years a certain species of bird lives follows an Exponential distribution with a decay parameter of Eli = 0.175. Round any probabilities to three decimals, then round final answers to one decimal if needed. a. Out of a random sample of 63 birds, how many would you expect to Live longer than 7 years? 19 b. What is the percentile of a bird that lives 5 years? c. Find the cutoff age for the oldest 15 percent of birds of this species. d. What is the life expectancy (in years} of this species of bird