The probability that any student at a school fails the screening test for a disease is 0.2. 25 students are going to be screened (tested). Let F be the number of students who fails the test. (a) Use Chebyshev's Theorem to estimate P(1 < F< 9), the probability that number of students who fail are between 1 and 9. (b) Use the Normal Approximation to the Binomial to find P(1 < F<9).