Z-Scores

Flashcard
•
Mathematics
•
9th - 11th Grade
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a Z-score?
Back
A Z-score indicates how many standard deviations an element is from the mean of a distribution.
2.
FLASHCARD QUESTION
Front
What does a Z-score of 0 represent?
Back
A Z-score of 0 indicates that the data point is exactly at the mean.
3.
FLASHCARD QUESTION
Front
How do you calculate a Z-score?
Back
Z-score = (X - Mean) / Standard Deviation, where X is the value.
4.
FLASHCARD QUESTION
Front
What does a positive Z-score indicate?
Back
A positive Z-score indicates that the data point is above the mean.
5.
FLASHCARD QUESTION
Front
What does a negative Z-score indicate?
Back
A negative Z-score indicates that the data point is below the mean.
6.
FLASHCARD QUESTION
Front
What is the significance of the 50th percentile?
Back
The 50th percentile is the median, meaning half of the data points are below this value.
Tags
CCSS.6.SP.B.5C
7.
FLASHCARD QUESTION
Front
What is the 75th percentile also known as?
Back
The 75th percentile is also known as the third quartile.
Tags
CCSS.6.SP.B.5C
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