Question 3 (1 point) Let A and B be events with PA)-0.73, PB)-0.20, and PB I A)-

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Question 3 (1 point) Let A and B be events with PA)-0.73, PB)-0.20, and PB I A)- 0.50. Find AA and B). Write only a number as your answer. Round to two decimal places (for example: 0.52). Do not write as a percentage. Your Answer: Answer Save Question 4 (1 point) se ed se Let A and B be independent events with PA)-0.25 and PB) -0.46 Find PA and B). Write only a number as your answer. Round to two decimal places (for example: 0.52). Do not write as a percentage. Your Answer Answer Save Question 5 (1 point) Luis has a coin that is weighted so that the probability that Heads appears when it is tossed is 0.53. Suppose that the coin is tossed 3 times. What is the probability that all 3 tosses are Heads? Write only a number as your answer. Round to four decimal places Ifor example: 0.0325). Do not write as a percentage. Your Answer

Explanation / Answer

3)
P(B|A)=P(A and B)/P(A)
0.5*0.73=P(A and B)
P( A and B )= 0.365
rounded answer is 0.37

4)
P(A|B)=P(A)=P(A and B)/P(B) for independent event
P(A and B)=P(A)*P(B) =0.25*0.46=0.115
rounded answer is 0.12
5)
P(head)=0.53
total probability to appear 3 head=0.53*0.53*0.53=0.143377
rounded answer is 0.1434
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