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Find the Mean of the Random Variable A) 1.501.50 B) 1.731.73 C) 2.002.00

Question 130

Multiple Choice

Find the mean of the random variable.
-The random variable X is the number of people who have a college degree in a randomly selected group of four adults from a particular town. Its probability distribution is given in the table. Round
The answer to two decimal places. X01234P(X=x) 0.12960.34560.34560.15360.0256\begin{array}{c|ccccc}\mathrm{X} & 0 & 1 & 2 & 3 & 4 \\\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.1296 & 0.3456 & 0.3456 & 0.1536 & 0.0256\end{array}


A) 1.501.50
B) 1.731.73
C) 2.002.00
D) 1.601.60

Correct Answer:

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