In a box of 50 markers, 30 markers are either red or black and 20 are missing their caps. If 12 markers are either red or black and are missing their caps, find the probability that a randomly selected marker is red or black or is missing its cap.
A) .38
B) 1
C) .76
D) .24

Question

Quizplus · Accepted Answer

The probability is calculated by adding the probabilities of the individual events and subtracting the probability of their intersection: P(Red or Black) + P(Missing Cap) - P(Red or Black and Missing Cap) = (30/50) + (20/50) - (12/50) = 0.76.

In a Box of 50 Markers, 30 Markers Are Either