section 5.2 homework\nscore: 1/15 answered: 1/15\nquestion 2\nfind the indicated probability\ngiven\np(a)=0.4…
section 5.2 homework\nscore: 1/15 answered: 1/15\nquestion 2\nfind the indicated probability\ngiven\np(a)=0.4\np(b)=0.4\np(a and b)=0.25\np(a or b)=
Answer
Explanation:
Step1: Recall the formula for $P(A\ or\ B)$
$P(A\ or\ B)=P(A)+P(B)-P(A\ and\ B)$
Step2: Substitute the given values
$P(A) = 0.4$, $P(B)=0.4$, $P(A\ and\ B)=0.25$ $P(A\ or\ B)=0.4 + 0.4- 0.25$
Step3: Calculate the result
$P(A\ or\ B)=0.55$
Answer:
$0.55$