SOLUTION: If P(A or B) = 0.7, P(A) = 0.3 and P(B) = 0.8, determine P(A and B). A. 0.21 B. 0.56 C. 0.10 D. 0.40

SOLUTION: If P(A or B) = 0.7, P(A) = 0.3 and P(B) = 0.8, determine P(A and B). A. 0.21 B. 0.56 C. 0.10 D. 0.40

Algebra.Com

Question 424582: If P(A or B) = 0.7, P(A) = 0.3 and P(B) = 0.8, determine
P(A and B).
A. 0.21
B. 0.56
C. 0.10
D. 0.40

Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!

P(A AND B) = P(A) +P(B) - P(A OR B)
= 0.8 + 0.3 - 0.7
=0.4

RELATED QUESTIONS
4. Compute the probability. a. If P(A) = 0.2 , P(B)= 0.4, and P(A and B) = 0.1, find... (answered by ikleyn)

P(A) = 0.56, P(A and B) = 0.15, find... (answered by Boreal,ikleyn)

If A and B are events with P(A)=0.8, P(A OR B)=0.87, P(A AND B)=0.23, find... (answered by math_tutor2020)

Assume that P(A) = 0.7, P(B) = 0.8, and P(B and A) = 0.56. a) Find P(A|B) and P(B|A).... (answered by ikleyn,math_tutor2020)

3- For two events A and B P(A)= 0.53,P(B) 0.36 and P(AnB)=0.29. Find a. P(A/B) b.... (answered by ikleyn)

P(A) = 0.31 P(B given A) = 0.8 P(A and B) =... (answered by ikleyn)

If P(A and B) = 0.2 and P (B|A) = 0.5, find P... (answered by math_tutor2020,greenestamps)

1) Use the Critical Values of t table to approximate the p-value for the t statistic in... (answered by ikleyn)

1. Use the Critical Values of t table to approximate the p-value for the t statistic in... (answered by ikleyn)

Suppose P(A)=0.9, P(B)=0.4 and P(B|A)=0.2. What is... (answered by math_tutor2020)