AP Statistics Exam Review
Flashcard
•
Mathematics
•
11th - 12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the interpretation of the slope of a regression line?
Back
The slope indicates the predicted change in the dependent variable for each one-unit increase in the independent variable.
2.
FLASHCARD QUESTION
Front
What does a slope of 0.61 in a regression model indicate?
Back
For every additional hour of growth, the logarithm of the culture's weight in grams is predicted to increase by 0.61.
3.
FLASHCARD QUESTION
Front
How do you calculate the inter-quartile range (IQR)?
Back
IQR = Q3 - Q1, where Q3 is the third quartile and Q1 is the first quartile.
4.
FLASHCARD QUESTION
Front
What is the purpose of the inter-quartile range?
Back
The IQR measures the spread of the middle 50% of data, indicating variability and helping to identify outliers.
5.
FLASHCARD QUESTION
Front
Define a regression line.
Back
A regression line is a line that best fits the data points in a scatter plot, representing the relationship between two variables.
6.
FLASHCARD QUESTION
Front
What is a dependent variable?
Back
A dependent variable is the outcome or response variable that is measured in an experiment.
7.
FLASHCARD QUESTION
Front
What is an independent variable?
Back
An independent variable is the variable that is manipulated or controlled in an experiment to test its effects on the dependent variable.
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