1.

If the probability that next saturday will rain is 0.4 and the probability that next sunday will rain is 0.4, what is the probability that during the weekend will rain?

Answer»

Answer:

0.46

Step-by-step EXPLANATION:

LET A denotes the event that it will rain TODAY and B denotes the event that it will rain tomorrow.

P(A) = 0.4

P(B) = 0.3 and P(A•B) = 0.12

REQUIRED probability = P(AUB) - P(A•B)

=P(A)+ P(B) -2.P(A•B)

=0.4 +0.3 - 2x(0.12) = 0.7 - 0.24 = 0.46



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