For a random variable X, E(X + 2) - 5 = E(X) - 3, where E refers to the expected value. Indicate ...

For a random variable X, E(X + 2) - 5 = E(X) - 3, where E refers to the expected value.
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Q. 2

Another name for the mean of a probability distribution is its expected value.
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Q. 3

The amount of milk consumed by a baby in a day is an example of a discrete random variable.
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Q. 4

For a random variable X, if V(cX) = 4V(X), where V refers to the variance, then c must be 2.
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Q. 5

Faculty rank (professor, associate professor, assistant professor, and lecturer) is an example of a discrete random variable.
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Q. 6

A table, formula, or graph that shows all possible values a random variable can assume, together with their associated probabilities, is referred to as probability distribution.
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