\(X\) | \(2\) | \(3\) | \(4\) | \(5\) |
\(P(X)\) | \(\frac5k\) | \(\frac7k\) | \(\frac9k\) | \(\frac{11}{k}\) |
then the value of k is:
X | 0 | 1 | 2 | otherwise |
P(X) | k | 2k | 3k | 0 |
Then:
(A) \( k = \frac{1}{6} \)
(B) \( P(X < 2) = \frac{1}{2} \)
(C) \( E(X) = \frac{3}{4} \)
(D) \( P(1 < X \leq 2) = \frac{5}{6} \)
Choose the correct answer from the options given below:
X | 3 | 4 | 5 |
---|---|---|---|
P(X) | 0.5 | 0.2 | 0.3 |
X | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
---|---|---|---|---|---|---|---|---|
P(X) | 0 | m | 2m | 2m | 3m | m² | 2m² | 7m² + m |
X | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
---|---|---|---|---|---|---|---|
P(X) | k | 2k | 2k | 3k | k2 | 2k2 | 7k2 + k |
List-I | List-II |
---|---|
(A) k | (I) 7/10 |
(B) P(X < 3) | (II) 53/100 |
(C) P(X ≥ 2) | (III) 1/10 |
(D) P(2 < X ≤ 7) | (IV) 3/10 |
X | 0 | 1 | 2 | otherwise |
P(X) | k | 2k | 3k | 0 |