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- Dec 6 B4 Bw Standard Deviation And Z Scores
Dec 6 B4 BW Standard deviation and z-scores
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the symbol for mean?
Back
The symbol for mean is .
2.
FLASHCARD QUESTION
Front
What is the formula for finding z-scores?
Back
The formula for finding z-scores is .
3.
FLASHCARD QUESTION
Front
What does a z-score represent?
Back
A z-score represents the number of standard deviations a data point is from the mean.
4.
FLASHCARD QUESTION
Front
How do you calculate the z-score for a given value?
Back
To calculate the z-score, subtract the mean from the value and then divide by the standard deviation.
5.
FLASHCARD QUESTION
Front
If a student scores 31 on the ACT, with a mean of 21 and a standard deviation of 5, what is the z-score?
Back
The z-score is 2.00.
6.
FLASHCARD QUESTION
Front
What is the mean of a normally distributed set of data?
Back
The mean is the average value of the data set.
7.
FLASHCARD QUESTION
Front
What is the standard deviation in a data set?
Back
The standard deviation measures the amount of variation or dispersion in a set of values.
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