Bivariate Data Analysis and Mad
Authored by Barbara White
Mathematics
12th Grade
CCSS covered
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22 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Blood pressure levels for women increase as they get older. What is the best description for the association between blood pressure levels and a woman’s age?
Positive Correlation
Zero correlation
Negative correlation
Constant correlation
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the correlation between the variables in the scatterplot?
Strong positive
Weak positive
Strong negative
Weak negative
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following scatterplots shows weak negative correlation?
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The birth weight and weight at age 21 of eight women are given in the table above.
What is the value of Pearson’s correlation coefficient?
0.5360
0.6182
0.7863
0.8232
Answer explanation
It should take a maximum of 1.5 minutes to type the data into the calculator, and another 30 seconds to calculate the value of r.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
0.41
0.45
1.33
1.87
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The equation of a regression line that enables weekly amount spent on entertainment (in dollars) to be predicted from weekly income is given by:
amount = 0.10 x income + 40
What is the predicted amount spent on entertainment with a weekly income of $600?
$40
$46
$100
$240
Tags
CCSS.HSF.LE.B.5
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
The scatterplot shows the navel height and the body height for nine students.
What has been plotted as the independent variable?
__________________________.
Answer explanation
The independent variable is always on the x-axis.
Tags
CCSS.HSF-LE.A.1B
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