Caureamark, p. 578 Coursepack, p. 577 1.3 MAT 133: 6.2 WS 2 p.2 + 3. A student takes a 10 question multiple choice quiz. Each question has four choices, only one of which is correct. The student guesses randomly at each answer. The binomial random variable, X, represents the number of correctly guessed questions. a) Find the following: (Give 2 decimal places where necessary) n = P = H = O = b) Interpret u and o in the context of the situation. c) To pass the test, the student must answer 7 or more questions correctly. Find the probability that the student passes the test. Give 4 decimal places. Would this be unusual? Explain. 4. For each of the following binomial distribution graphs n = 50. dyblood Would Which graph has p = 0.25? Explain how you can tell. 6.2.2 #4: Graph B 6.2.2 #4: Graph A B 2 Probabilit B 0.02 15 20 25 40 45 10 25 30 35