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    Statistics
  3. Study Set
    Stats Data and Models Study Set 1
  4. Exam
    Exam 14: Random Variables
  5. Question
    \[\begin{array} { c | c c c r } \mathrm { x } & 3 & 6 & 9 & 12 \\ \hline \mathrm { P } ( \mathrm { X } = \mathrm { x } ) & 0.1 & 0.4 & 0.2 & 0.3 \end{array}\]
Solved

A)862
B)2

Question 162

Question 162

Multiple Choice

x36912P(X=x) 0.10.40.20.3\begin{array} { c | c c c r } \mathrm { x } & 3 & 6 & 9 & 12 \\\hline \mathrm { P } ( \mathrm { X } = \mathrm { x } ) & 0.1 & 0.4 & 0.2 & 0.3\end{array}xP(X=x) ​30.1​60.4​90.2​120.3​​


A) 8.62
B) 2.71
C) 2.41
D) 3.01
E) 3.32

Correct Answer:

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