AP EAMCET · Maths · Probability
A random variable \(X\) has its range \(\{-1,0,1\}\). If its mean is 0.2 and \(P(X=0)=0.2\), then \(P(X=1)=\)
- A 0.1
- B 0.7
- C 0.4
- D 0.5
Answer & Solution
Correct Answer
(D) 0.5
Step-by-step Solution
Detailed explanation
According to given information, \(\begin{array}{ccc} \hline X=-1 & X=0 & X=1 \\ \hline a & b & c \\ \hline \end{array}\) Also, given mean \(=0.2\)…
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