The probability distribution of a random variable X is given by
|
X |
0 |
1 |
2 |
3 |
4 |
|
P(X) |
0.1 |
k |
2k |
2k |
k |
The value of k is:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → $\frac{3}{20}$
Since the sum of all probability be 1.
$0.1+k+2k+2k+k=1$
$6k=0.9$
$k=\frac{9}{60}=\frac{3}{20}$