Let A and B be independent events with P(A) = 0.57 and P(B) = 0.21. Find P(A and

Question

Let A and B be independent events with P(A) = 0.57 and P(B) = 0.21. Find P(A 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: Luis has a coin that is weighted so that the probability that Heads appears when it is tossed is 0.52. Suppose that the coin is tossed 4 times. What is the probability that all 4 tosses are Heads? Write only a number as your answer. Round to four decimal places (for example: 0.0325). Do not write as a percentage. Your Answer:

Explanation / Answer

4) P(A and B) = P(A)*P(B) = 0.57*0.21 = 0.1197 = 0.12

   Answer : 0.12

5) The probability that heads appears when it is tossed is 0.52

The coin is tossed 4 times.

The probability that all 4 tosses are heads is (0.52^4) = 0.07311616 =0.0731

   Answer : 0.0731

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