JMR 2 Vars Review
Authored by Geoffrey Reckerd
Mathematics
9th - 12th Grade
CCSS covered
Used 2+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which scatter plot diagram shows the strongest positive correlation?
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.
y = 1.5x + 12
y = 12x + 1.5
y = 0.67x - 8
y = -8x + 0.67
Tags
CCSS.8.EE.C.8C
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A person travels by car. They record their miles driven in a data table. Calculate the linear regression equation of this data.
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The annual profits for a company are given in the following table, where x represents the number of years since 1992, and y represents the profit in thousands of dollars. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest hundredth. Using this equation, estimate the year in which the profits would reach 378 thousand dollars.
2029
2014
2003
8753
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The number of newly reported crime cases in a county in New York State is shown in the accompanying table, where x represents the number of years since 1994, and y represents number of new cases. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest hundredth. Using this equation, find the projected number of new cases for 2003, rounded to the nearest whole number.
974
25,101
940
952
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which scatter plot shows no relationship?
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Data was collected on the weight of a male laboratory rat for the first 25 weeks after its birth. The linear regression equation is
y= 40x+100, where x is number of weeks and y is weight in grams.
What does the y-intercept mean in context of the problem?
Tags
CCSS.HSF.LE.B.5
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