5. Is a normal distribution a reasonable approximation for a binomial distribution with n = 50 and p = 0.85? Explain your reasoning. 6. Use the normal approximation to find " and J in a binomial distribution with n = 1000 and p = 0.5. 7. A really tough trivia quiz has 50 multiple-choice questions, each with four possible answers. Use a normal approximation to calculate the probability of randomly guessing the correct answers for at least half of the questions. 8. A really tough trivia quiz has 50 multiple-choice questions, each with four possible answers. Use a normal approximation to calculate the probability of randomly guessing the correct answers for 10 to 15 (inclusive) of the questions. 9. QuenCola, a soft-drink company, knows that it has a 42% market share in one region of the province. QuenCola's marketing department conducts a blind taste test with 100 people at a mall in the region. Use a normal approximation to calculate the probability that fewer than 40 of these people will choose QuenCola. 10. QuenCola, a soft-drink company, knows that it has a 42% market share in one region of the province. QuenCola's marketing department conducts a blind taste test with 100 people at a mall in the region. Use a normal approximation to calculate the probability that exactly 40 of these people will choose QuenCola