A basket contains 3 red and 1 white identical balls. A ball is drawn from the basket at random. Calculate the probability that it is either white or red.
-
A.
(frac{1}{3}) -
B.
(frac{1}{2}) -
C.
(frac{3}{4}) -
D.
1
Correct Answer: Option D
Explanation
P(white or red) = P(white) + P(red)
= (frac{3}{4} + frac{1}{4})
= 1