1
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0
The probability distribution of a discrete random variable X is given as
| $$\mathrm{X}$$ | 1 | 2 | 4 | 2A | 3A | 5A |
|---|---|---|---|---|---|---|
| $$\mathrm{P(X)}$$ | $$\frac{1}{2}$$ | $$\frac{1}{5}$$ | $$\frac{3}{25}$$ | K | $$\frac{1}{25}$$ | $$\frac{1}{25}$$ |
$$ \text { Then the value of } A \text { if } E(X)=2.94 \text { is } $$
2
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0
18 Points are indicated on the perimeter of a triangle $$\mathrm{ABC}$$ as shown below. If three points are chosen then probability that it will from a triangle is
3
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0
The probability of choosing randomly a number c from the set {1, 2, 3, ... 9} such that the quadratic equation $$x^2+4x+c=0$$ has real roots, is
4
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0
Five persons A, B, C, D and E are in queue of a shop. The probability that A and B are always together is
Questions Asked from Probability (MCQ (Single Correct Answer))
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