Last Updated on May 11, 2023
Since we need to determine the probability that Malachi will return home at the end of the day on the following Monday, we must determine:
P(no rain Sat and no rain Sun and rain Mon) = P(no rain Sat) x P(no rain Sun) x P(rain Mon)
Since the probability of rain is 0.2, the probability of no rain is 1 – 0.2 = 0.8, and thus:
P(no rain Sat) x P(no rain Sun) x P(rain Mon) = 0.8 x 0.8 x 0.2 = 0.128
Answer: B
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