Question

(i)State which method should be used to best determine the sample space: an outcome table, a tree diagram, or a Venn diagram.

(ii)Calculate the probability of the desired event (assuming all outcomes are equally likely) using the method you decided upon in part (i), rounded to 3 significant digits as needed.

A pharmacy technician is required to take an online quiz as part of a workplace safety program. There are 15 questions on the quiz, all of which are True-False questions. He knows the answer to 10 of the questions, but he needs a score of 12 or better out of 15 to pass the quiz. What is the probability that he will pass the quiz by guessing randomly on the 5 questions he is unsure of?

Answer 1