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Ne4ueva [31]
4 years ago
12

The weather forecaster says that the probability of rain on Saturday is 20% and the probability of rain on Sunday is 30%. a. Can

you determine the probability of rain over the weekend (Saturday or Sunday)? Explain.
Mathematics
1 answer:
Annette [7]4 years ago
7 0

Answer:

0.44

Step-by-step explanation:

given that the weather forecaster says that the probability of rain on Saturday is 20% and the probability of rain on Sunday is 30%.

It is common sense to know that Saturday and Sunday are independent of the other

Hence Probability that it rains on both days = 0.2*0.3=0.06

Since for independent events joint probability is the product of probabilities

required probability

= probability of rain over the weekend (Saturday or Sunday

= P(Sunday)+P(Saturday) -P(both)

=0.2+0.3-0.06\\=0.44

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