TS EAMCET · Maths · Probability
A random variable \(\mathrm{X}\) has the following probability distribution \begin{array}{|c|c|c|c|c|c|c|c|c|} \hline \mathrm{X}=\mathrm{x} & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \ \hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.15 & 0.23 & \mathrm{k} & 0.10 & 0.20 & 0.08 & 0.07 & 0.05 \ \hline \end{array} For the events \(E=\{x / x\) is a prime number \(\}\) and \(F=\{x / x < 4\}\) then \(P(E \cup F)=\)
- A \(0.57\)
- B \(0.87\)
- C \(0.77\)
- D \(0.35\)
Answer & Solution
Correct Answer
(C) \(0.77\)
Step-by-step Solution
Detailed explanation
\(\Sigma \mathrm{P}=1\) \(0.15+0.23+\mathrm{K}+0.10+0.20+0.08+0.07+0.05=1\)…
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