10. The director of admissions in a small college administered a newly designed entrance te 100 students selected at random from the upcoming freshman class. The purpose of this stu was to determine whether students' grade point average (GPA) at the end of the freshman ye can be predicted from the entrance test score. At the end of the year when all the data are available, what would be the graph you would use to display the data? A. A histogram of the entrance test scores. B. A histogram of the GPAS. C. A scatterplot with GPA on the y-axis and the entrance test scores on the x-axis. D. A scatter plot with the entrance test scores on the y-axis and GPA on the x-axis.

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Infant Mortality Rate per 1000 Births
10. The director of admissions in a small college administered a newly designed entrance te
100 students selected at random from the upcoming freshman class. The purpose of this stuc
was to determine whether students' grade point average (GPA) at the end of the freshman ye
can be predicted from the entrance test score. At the end of the year when all the data are
available, what would be the graph you would use to display the data?
A. A histogram of the entrance test scores.
B. A histogram of the GPAS.
C. A scatterplot with GPA on the y-axis and the entrance test scores on the x-axis.
D. A scatter plot with the entrance test scores on the y-axis and GPA on the x-axis.
11. Climatologists can estimate the amount of rainfall in California on a year by year basis ove
the last two thousand years by looking at the distance between the rings in very old redwood
trees that have recently fallen (the idea being that the tree would grow faster - and hence the
rings would be farther apart – for years with more rainfall). In this situation, which of the two
variables below should be plotted on the Y-axis of a scatterplot and which should be plotted on
the X-axis? Explain why.
Variable 1: The distance between the rings
Variable 2: The amount of rainfall
12. In an observational study, correlation does not imply causation because
A. a high correlation may result from both X and Y being related to an unknown
confounding variable.
B. a high correlation may result from an outlier in the scatter plot.
C. correlations may be negative.
D. The regression line may have a steep slope.
4
MacBook Air
% of Juveni
Transcribed Image Text:+ + 12 15 18 21 Infant Mortality Rate per 1000 Births 10. The director of admissions in a small college administered a newly designed entrance te 100 students selected at random from the upcoming freshman class. The purpose of this stuc was to determine whether students' grade point average (GPA) at the end of the freshman ye can be predicted from the entrance test score. At the end of the year when all the data are available, what would be the graph you would use to display the data? A. A histogram of the entrance test scores. B. A histogram of the GPAS. C. A scatterplot with GPA on the y-axis and the entrance test scores on the x-axis. D. A scatter plot with the entrance test scores on the y-axis and GPA on the x-axis. 11. Climatologists can estimate the amount of rainfall in California on a year by year basis ove the last two thousand years by looking at the distance between the rings in very old redwood trees that have recently fallen (the idea being that the tree would grow faster - and hence the rings would be farther apart – for years with more rainfall). In this situation, which of the two variables below should be plotted on the Y-axis of a scatterplot and which should be plotted on the X-axis? Explain why. Variable 1: The distance between the rings Variable 2: The amount of rainfall 12. In an observational study, correlation does not imply causation because A. a high correlation may result from both X and Y being related to an unknown confounding variable. B. a high correlation may result from an outlier in the scatter plot. C. correlations may be negative. D. The regression line may have a steep slope. 4 MacBook Air % of Juveni
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