++12151821Infant Mortality Rate per 1000 Births10. The director of admissions in a small college administered a newly designed entrance te100 students selected at random from the upcoming freshman class. The purpose of this stucwas to determine whether students' grade point average (GPA) at the end of the freshman yecan be predicted from the entrance test score. At the end of the year when all the data areavailable, 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 ovethe last two thousand years by looking at the distance between the rings in very old redwoodtrees that have recently fallen (the idea being that the tree would grow faster - and hence therings would be farther apart – for years with more rainfall). In this situation, which of the twovariables below should be plotted on the Y-axis of a scatterplot and which should be plotted onthe X-axis? Explain why.Variable 1: The distance between the ringsVariable 2: The amount of rainfall12. In an observational study, correlation does not imply causation becauseA. a high correlation may result from both X and Y being related to an unknownconfounding 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.4MacBook Air% of Juveni

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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.

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.

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

+
+
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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