TS EAMCET · Maths · Probability
The range of a random variable is If then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Random variable x is 0,1,2 PX=0=3c3, PX=1=4c-10c2 PX=2=5c-1 Sum of all probabilities for a random variable is always 1 ⇒ PX=0+PX=1+PX=2=1 ⇒ 3c3-10c2+9c-1=1 ⇒ 3c3-10c2+9c-2=0 ⇒c-1c-23c-1=0 Only possible value of c is…
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