# Let a sample space of an experiment be S = {E1, E2, … , En} then ∑P(Ei) for i ∈ [1,n] is equal to: (a) 0 (b) 1 (c) 1/2

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Let a sample space of an experiment be S = {E1, E2, … , En} then $\sum_{i=1}^{n} P(E_i)$ is equal to:

(a) 0

(b) 1

(c) $\frac{1}{2}$

(d) $\frac{1}{3}$

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(b) 1

Sum of probabilities is 1

i.e., $\sum_{i=1}^{n} P(E_i)$ =  1