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a https//www.mathxl.com/Student/PlayerHomework.aspx?homeworkld-5063723848questIonid hshed INSS 220-101 F18 julie he Homework: Homework 4 (Due 9/25/18 @ 11:59 pm) Hv Score: 0 of 8 pts 5of7 (3 complete) Post 4.2.12 Get an Use the contingency table to determine the following probabilities a. P(B or C) b. P(B or D) c.P(A or E) d. P(A or B) Event A Event B Event C Event D Event E 13 6 15 How ill . Sub . GET! a. P(B or C)- (Round to two decimal places as needed ) . Use Enter your answer in the answer box and then click Check Answer

Explanation / Answer

Solution :

Event A Event B Total

Event C 2 2 4

Event D 13 15 28

Event E 6 12 18

Total 21 29 50

a) P(B or C) =29 / 50 + 4 / 50 - 2 / 50 = (29 + 4 - 2) / 50 = 31 / 50 = 0.62

b) P(B or D) = 29 / 50 + 28 / 50 - 15 / 50 = (29 + 28 - 15) / 50 = 42 / 50 = 0.84

c) P(A or E) = 21 / 50 + 18 / 50 - 6 / 50 = (21 + 18 - 6) / 50 = 33 / 50 = 0.66

d) P(A or B) = 21 / 50 + 29 / 50 - 0 = (21 + 29) / 50 = 50 / 50 = 1

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