Three elementary events have probabilities and

MATHEMATICS · Single correct · CBSE · Mathematics · Probability · Probability

Problem

Three elementary events have probabilities

0.2,\;0.3

and

k

. Find the value of

k

so that these probabilities form a valid probability distribution. (a)

0.6

(b)

0.5

(c)

0.33

(d)

0.25