Discrete Probability Distributions
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a discrete random variable?
Back
A discrete random variable is a variable that can take on a countable number of distinct values, often representing counts of items or occurrences.
2.
FLASHCARD QUESTION
Front
Classify the following: The number of cheeseburgers a fast-food restaurant serves each day.
Back
Discrete
3.
FLASHCARD QUESTION
Front
Which of the following is a discrete random variable? Sam's height, Sam's weight, Time Sam's runs the 110 m hurdles, Amount of Sam's brothers and sisters.
Back
Amount of Sam's brothers and sisters
4.
FLASHCARD QUESTION
Front
What is the relationship between standard deviation (s.d.) and variance?
Back
5.
FLASHCARD QUESTION
Front
What do all probabilities in a probability distribution add up to?
Back
1
6.
FLASHCARD QUESTION
Front
How do you calculate the mean of a discrete probability distribution?
Back
Sum of all values multiplied by their probabilities.
7.
FLASHCARD QUESTION
Front
What is the variance of a discrete random variable?
Back
Variance measures the spread of a set of values in a probability distribution.
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