Question

P(A)= 0.50, P(B)= 0.40, and P(A and B)=0.15 what is P(A or B)?

Answer 1

Answer:

0.75

Step-by-step explanation:

P(A)+ P(B)- P(A and B)= P(A or B)

0.5+ 0.4- 0.15= 0.75

(I also just took this question on APEX)

Answer 2

Probabilities are used to determine the chance of events

The value of $\mathbf{P(A\ or\ B) }$ is 0.75

The given parameters are:

$\mathbf{P(A) = 0.50}$

$\mathbf{P(B) = 0.40}$

$\mathbf{P(A\ and\ B) = 0.15}$

The required probability is calculated using:

$\mathbf{P(A\ or\ B) = P(A) + P(B) - P(A\ and\ B)}$

So, we have:

$\mathbf{P(A\ or\ B) = 0.50 + 0.40 - 0.15}$

$\mathbf{P(A\ or\ B) = 0.75}$

Hence, the value of $\mathbf{P(A\ or\ B) }$ is 0.75

Read more about probabilities at:

https://brainly.com/question/11234923