Find the Expected Value of the Random Variable

question 66

Multiple Choice

Find the expected value of the random variable. Round to the nearest cent unless stated otherwise.
-Suppose you buy 1 ticket for $1 out of a lottery of 1,000 tickets where the prize for the one winning ticket is to be $500. What is your expected value?

• A)-$1.00
• B)-$0.40
• C)-$0.50
• D)$0.00

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Definitions:

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A research method used in developmental psychology to study infants' understanding of the world by observing their reactions to events that contradict their expectations.

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