Question
Mathematics Question on Probability Distribution
A discrete random variable X takes the values 0, 1, 2, 3, 4 and its mean is 1.6. If P(X=1)=0.4, P(X=4)=P(X=2) and P(X=3)=2P(X=2), then P(X=0) is:
A
0.2
B
0.1
C
0.4
D
0.3
Answer
0.2
Explanation
Solution
The correct option is (A):0.2