Question

7. A student randomly chooses every answer on a 30-question multiple choice test. Which of the following reasons is needed to determine if this is a binomial distribution? (1 point) O The number of questions on the test is less than S0 Only one student is choosing to answer the questions randomly 0 The student is randomly choosing answers on only one test. O The outcomes can be divided into two categories: correct and incorrect 8. Assume that a procedure yields a binomial distribution with a trial that is repeated 10 times. (l point Use the binomial probability formula to find the probability of 6 successes given that a single success has a probability of 0.30. 0.400 00.368 0.037 О 0.600 9. A bag contains 40 jellybeans with 5 different colors. Each color is equally represented. You are (I point) interested in randomly drawing one jellybean at a time and checking the color before eating it. You want to know how many red jelly beans you will pull out of the bag during the first 10 draws. Can the probability be found by using the binomial probability formula? Why or why not? o Yes. The trials are fixed and the probability of success remains the same for every trial. 0 No. The events are dependent, and the 5% guideline cannot be applied to this situation, O No. The trials are fixed, but the events are independent. Yes. The events are dependent; however, the 5% guideline can be applied to this situation.

Answer 1

7. The outcome can be divided into two categories: correct and incorrect.

$8. \ P(X=6) = \binom{10}{6}(0.30)^6 (0.70)^4 = \mathbf{0.037}$

9. No, the events are dependent.......