
AP Stats Cumulative Review #2
Flashcard
•
Mathematics
•
KG - University
•
Practice Problem
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the mean of a set of values?
Back
The mean is the average of a set of values, calculated by adding all the values together and dividing by the number of values.
Tags
CCSS.6.SP.B.5C
2.
FLASHCARD QUESTION
Front
What is standard deviation and what does it indicate?
Back
Standard deviation is a measure of the amount of variation or dispersion in a set of values. A low standard deviation indicates that the values tend to be close to the mean, while a high standard deviation indicates that the values are spread out over a wider range.
3.
FLASHCARD QUESTION
Front
If all values in a dataset are increased by a constant amount, how does it affect the standard deviation?
Back
The standard deviation remains unchanged when all values in a dataset are increased or decreased by a constant amount.
4.
FLASHCARD QUESTION
Front
What is the difference between the 60th and 40th percentiles called?
Back
This difference is referred to as the interpercentile range, which provides information about the variability of the data.
Tags
CCSS.6.SP.B.5C
5.
FLASHCARD QUESTION
Front
What factors can affect the correlation coefficient (r)?
Back
None of the above factors can affect the r-value; correlation is a measure of the strength and direction of a linear relationship between two variables.
Tags
CCSS.HSS.ID.C.8
6.
FLASHCARD QUESTION
Front
How do you determine the sample size needed for a survey to achieve a specific margin of error?
Back
The sample size can be determined using the formula that incorporates the desired margin of error, confidence level, and the population proportion.
Tags
CCSS.HSS.IC.B.4
7.
FLASHCARD QUESTION
Front
What is a confidence interval?
Back
A confidence interval is a range of values, derived from a data set, that is likely to contain the value of an unknown population parameter.
Tags
CCSS.HSS.IC.B.4
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