Question

P(A)=0.35P(B)=0.40P(A and B)=0.13Find P(A or B).Round your answer to two decimal places.

Answer 1

Given:

$\begin{gathered} P\left(A\right)=0.35 \\ P\left(B\right)=0.40 \\ P\left(A\text{ }and\text{ }B\right)=0.13 \end{gathered}$

To find:

$P(A\text{ or }B)$

Explanation:

Using the formula,

$\begin{gathered} P(A\text{ or}B)=P(A)+P(B)-P(A\text{ and }B) \\ =0.35+0.40-0.13 \\ =0.62 \end{gathered}$

Therefore, the value is,

$P(A\text{ or }B)=0.62$

Final answer:

The value is,

$P(A\text{ or }B)=0.62$