Question 1147683
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P(B | A) is equal to  P(A and B) / P(A), by the definition of conditional probability.


So, you are given  P(A) = 0.89  and  P(A and B) / P(A) = 0.34.


Therefore, to find  P(A and B),  you need simply multiply 0.34 by 0.89 to get the answer.
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Happy calculations (!)


On conditional probabilities, see the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/Probability-and-statistics/Conditional-probability-problems.lesson>Conditional probability problems</A> 

in this site.