Sum of all probabilities must equal 1:
0.1+k+2k+2k+k=1
0.1+6k=1
6k=0.9⇒k=0.15.
CUET UG 2022 — Mathematics Algebra
The probability distribution of a discrete random variable X is given as :
| x | 0 | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|
| P(X=x) | 0.1 | k | 2k | 2k | k |
The value of K is:
Held on 4 Aug 2022 · Verified 13 Jul 2026.
0.16
0.18
0.15
0.25
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