Question

Find P(Not a 1).

X 1 2 3 4
P(X) 0.30 0.40 0.15 0.15
A. 0.85
B. 0.70
C. 0.15
D. 0.30

Answer 1

for ppl with different numbers its 0.60

Explanation:

Answer 2

P ( not a 1 ) = ?
P ( a 1 ) = 0.30
P ( not a 1 ) = 1 - 0.30 = 0.70
Answer: B ) 0.70
Thank you.