i Chrome File Edit View History Bookmarks People Window Help Do Homework - Marya

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i Chrome File Edit View History Bookmarks People Window Help Do Homework - Maryam Al-Sheeb k.aspx?homeworkld 455322573&questionld; 1&flushed; false&cld; 47574538centerwin yes Secure https://www.mathxl.com/Studen Fall 2017_MATH11911464 L56 Maryam Al-Sheeb | 12/16/17 8:08 PM Homework: Homework 10- Chapter 7: Conditional Probability a Score: 0 of 1 pt Bus Econ 7.6.11 Save 7of10(1 complete) Hw Score: 10%, 1 of 10 pts Question Help e she appro es un alified people 2 % of he ime. Find the Of all the people applying for a certain ob 60% are quali ed and 40% are not. The personnel manager c i s that she approves qualified pe pie 70% of the person is qualified if he or she was approved by the manager. a hat The probablity is Roud to 3 decimal places, if necessary) Enter your answer in the answer box and then click Check Answer All parts showing Clear All Check Answer 16

Explanation / Answer

Pr(Qualified) = 0.60

Pr(Not qualified) = 0.40

Pr(Approves l Qualified) = 0.70

Pr(Approves l not qualified) = 0.20

Pr(Approved) = Pr(qualified) *Pr(Approves l Qualified) + Pr(Not qualified) * Pr(Approves l not qualified)

= 0.60 * 0.70 + 0.40 * 0.20 = 0.50

Pr(Qualified l Approved) = 0.60 * 0.70/ 0.50 = 0.84

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