Question

True or false. Suppose S = {s1, s2, …, sn} is a finite sample space with n outcomes. Then 0 < P(s1) + P(s2) + … + P(sn) < 1.

Answer 1

see what do u think ???

Answer 2

the sum of all probabilities of all possible outcomes ?

Answer 3

Shouldn't it be:
\[0 < P(s1) + P(s2) + … + P(sn) \le 1\]

Answer 4

or even
\[P(s1) + P(s2) + … + P(sn) = 1\]