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Course: AP??/College Statistics?>?Unit 8
Lesson 2: Mean and standard deviation of random variables- Mean (expected value) of a discrete random variable
- Mean (expected value) of a discrete random variable
- Interpreting expected value
- Interpret expected value
- Variance and standard deviation of a discrete random variable
- Standard deviation of a discrete random variable
- Mean and standard deviation of a discrete random variable
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Interpret expected value
Problem
A certain basketball player regularly shoots sets of free-throws. The table below displays the probability distribution of , the number of shots the player makes in a set of attempts.
Priya and Hadley, fans of this player, calculate the expected value of is .
Priya says, "The probability that this player makes a free-throw is , on average."
Hadley says, "This player will make free-throws in his next set of ."
Whose statement is correct based on the expected value?
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