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Let (R, T) be a topological space and A,BCR Compute Fr(A) andFr(B), where A = [-3,5]and B={ new}....

Question

Let (R, T) be a topological space and A,BCR Compute Fr(A) andFr(B), where A = [-3,5]and B={ new}.

Let (R, T) be a topological space and A,BCR Compute Fr(A) and Fr(B), where A = [-3,5] and B={ new}.



Answers

Events $A$ and $B$ are given such that $P(A)=\frac{3}{4}, P(A \cup B)=\frac{4}{5}$ and $P(A \cap B)=\frac{3}{10}$ Find $P(B)$

In this problem. We are being told that a nbr independent events. So we know that we can use this Ah, last line. And then we're gonna try to use that information, whatever we could get from it. Teoh, look for the ah A or B the union, and that'll be through the combined events formula. So we'll start with the independent part first because we know they're independent. Weaken set up on the following a envy, which is 3/10 is equal to probability of a or just 3/7 times. The probability of being so 3/10 times 7/3 is equal to probability of be instance, my algebra and 7/10 is probability of being, and we're gonna use that in the combined events formula. So to find probability of A or B, we'll have the probability of a 3/7 plus the probability of B, which is 7/10 minus a N B, which is 3/10. Ah, looks like a common denominator of 70. So 30 plus 49 minus 21 over 70. So the 79 minus 21 that'll be 58/70 and we can reduce that to 29 over 35


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