Question

Suppose a and b are independent events. if p(a)=0.4 and p(b)=0.1, what is p(a u

b.?

Answer 1

$\mathbb P(A\cup B)=\mathbb P(A)+\mathbb P(B)-\mathbb P(A\cap B)$

Since $A$ and $B$ are independent, we have $\mathbb P(A\cap B)=\mathbb P(A)\mathbb P(B)$.

So,

$\mathbb P(A\cup B)=0.4+0.1+0.4\times0.1=0.54$

Answer 2

Answer:

0.54

Step-by-step explanation:

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