Main content
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
? 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice
Standard deviation of a discrete random variable
You might need: Calculator
Problem
Anasia is a basketball player who regularly shoots sets of free-throws. Suppose that each shot has probability of being made, and the results of the shots are independent.
The table below displays the probability distribution of , the number of shots that Anasia makes in a set of attempts.
Given that makes, find the standard deviation of the number of shots that Anasia makes.
Round your answer to two decimal places.
Round your answer to two decimal places.