What is a continuous random variable?
A.P. Statistics Chapter 6 - 2024-2025

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Mathematics
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11th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A continuous random variable is a variable that can take on an infinite number of values within a given range. An example is the time it takes for a student to complete an exam.
2.
FLASHCARD QUESTION
Front
What is a discrete random variable?
Back
A discrete random variable is a variable that can take on a finite number of values. An example is the number of cheeseburgers a fast-food restaurant serves each day.
3.
FLASHCARD QUESTION
Front
What is the expected value in probability?
Back
The expected value is the average outcome of a random variable, calculated by multiplying each possible outcome by its probability and summing the results.
4.
FLASHCARD QUESTION
Front
How do you calculate the standard deviation of independent random variables?
Back
To calculate the standard deviation of independent random variables, square the standard deviations of each variable, sum them, and then take the square root of the result.
5.
FLASHCARD QUESTION
Front
What is the probability of getting at least 13 heads when flipping a coin 20 times?
Back
The probability of getting at least 13 heads when flipping a coin 20 times is approximately 0.1316.
6.
FLASHCARD QUESTION
Front
What is the formula for calculating the expected value of a game?
Back
The expected value (EV) is calculated as EV = Σ (Probability of outcome × Value of outcome) for all possible outcomes.
7.
FLASHCARD QUESTION
Front
What is the difference between a population and a sample in statistics?
Back
A population includes all members of a specified group, while a sample is a subset of the population used to represent the group.
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