Q15.webp

Question: 15
(Choose 1 answer)
(See picture)
A. 0.90
B. 0.50
C. 0.11
D. 0.43
E. 0.33
F. 0.14
A random variable X has the following probability distribution. Given that
the mean of X is 2.2 What is the value of a+3b?
X
0
1
2
3
4
P(x)
0.1
0.2
0.2