
Concept explainers
a.
Analyse the data of exam scores.
a.

Answer to Problem 46E
Result shown in plot.
Explanation of Solution
Given information:
The table shows the mathematics entrance test scores and the final examination scores in an algebra course for a sample of
Sketch a
Calculation:
Apply data from given table plot the scatter plot,
Hence result shown in plot.
b.
Analyse the data of exam scores.
b.

Answer to Problem 46E
Explanation of Solution
Given information:
The table shows the mathematics entrance test scores and the final examination scores in an algebra course for a sample of
Find the entrance test score of any student with a final exam score in the
Calculation:
There is only one final exam score in the
The corresponding value of
Hence the entrance test score of any student with a final exam score in the
c.
Analyse the data of exam scores.
c.

Answer to Problem 46E
Higher entrance exam score is
Higher final exam score is
Explanation of Solution
Given information:
The table shows the mathematics entrance test scores and the final examination scores in an algebra course for a sample of
Does a higher entrance test score imply a higher final exam score? Explain
Calculation:
Yes, the higher entrance exam score imply a higher final exam score
Higher entrance exam score is
Higher final exam score is
Chapter 1 Solutions
EBK PRECALCULUS W/LIMITS
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