5.1 and 5.2 Probability Distributions Extra Extra Practice
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the formula to calculate the Z-score?
Back
Z = (X - μ) / σ, where X is the value, μ is the mean, and σ is the standard deviation.
2.
FLASHCARD QUESTION
Front
What does a Z-score represent in a probability distribution?
Back
A Z-score indicates how many standard deviations an element is from the mean.
3.
FLASHCARD QUESTION
Front
Classify the following: The number of students in a classroom.
Back
Discrete
4.
FLASHCARD QUESTION
Front
Classify the following: The height of students in a school.
Back
Continuous
5.
FLASHCARD QUESTION
Front
What is a discrete random variable?
Back
A variable that can take on a countable number of values.
6.
FLASHCARD QUESTION
Front
What is a continuous random variable?
Back
A variable that can take on an infinite number of values within a given range.
7.
FLASHCARD QUESTION
Front
If μ = 50 and σ = 10, what is the Z-score for X = 70?
Back
Z = (70 - 50) / 10 = 2.
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