For a sample space

MATHEMATICS · Subjective · CBSE · Mathematics · Probability · Probability

Problem

For a sample space

S=\{s_1,s_2,s_3\}

, a student assigns probabilities

P(s_1)=0.4

P(s_2)=0.5

and

P(s_3)=0.3

. Determine whether this assignment is valid and give a brief reason for your answer.