Question

score on last try: 0 of 1 pts. see details for more. at least one scored part is incorrect. jump to first changeable incorre > next question get a similar question you can retry this find the indicated probability given p(a) = 0.35 p(a or b) = 0.65 p(a and b) = 0.2 find p(b) = 0.8 × are these events disjoint? yes no

Explanation:

Step1: Recall probability formula

Use the formula $P(A\ or\ B)=P(A)+P(B)-P(A\ and\ B)$.

Step2: Rearrange formula to solve for P(B)

$P(B)=P(A\ or\ B)+P(A\ and\ B)-P(A)$.

Step3: Substitute given values

$P(B)=0.65 + 0.2-0.35$.

Step4: Calculate P(B)

$P(B)=0.5$.

Answer:

$P(B) = 0.5$
No