Hat or Toy Car

[nycmathguy]

The probability of selecting a hat from a box is 1/3. The probability of selecting a toy car from the same box is 1/4. What is the probability of selecting a hat or a toy car?

Let me see.

Let A = hat

Let B= toy car

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

P(A or B) = (1/3) + (1/4)

Yes?

 

[MathLover1]

correct

 

[nycmathguy]

correct

I got lucky there. I gotta study probability after calculus.