2. Consider the following examples; would you expect the correlation coefficient to be close to 1, -1, or 0 (10 points): The amount of time a dog is walked, and the number of hours the dog sleeps at night Outdoor temperature and snowfall. The length of time someone wears braces and their SAT scores. 3. The following graph represents the amount of time that someone studies for their final exam, and their final examination grade (HINT) (20 points). Student 1 Student 2 Student 3 Student 4 Student 5 Student 6 Hours Studied 4 7 11 8 10 8 Final Exam Grade 55% 72% 88% 93% 91% 84% Graph the following students as ordered pairs. Let the x-axis represent the hours studied, and the y-axis represent the students’ final exam grade. Circle the value that best represents the estimate of r: (circle one) -0.99, -0.62, -0.30, 0, 0.30, 0.75, 0.85, 0.99
2. Consider the following examples; would you expect the
The amount of time a dog is walked, and the number of hours the dog sleeps at night
Outdoor temperature and snowfall.
The length of time someone wears braces and their SAT scores.
3. The following graph represents the amount of time that someone studies for their final exam, and their final examination grade (HINT) (20 points).
|
|
Student 1 |
Student 2 |
Student 3 |
Student 4 |
Student 5 |
Student 6 |
|
Hours Studied |
4 |
7 |
11 |
8 |
10 |
8 |
|
Final Exam Grade |
55% |
72% |
88% |
93% |
91% |
84% |
Graph the following students as ordered pairs. Let the x-axis represent the hours studied, and the y-axis represent the students’ final exam grade.
Circle the value that best represents the estimate of r: (circle one)
-0.99, -0.62, -0.30, 0, 0.30, 0.75, 0.85, 0.99
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