Statistic
posted by Ashley S .
Number of Absences
Final
Grade
0
93
1
93
2
77
3
68
4
65
5
54
 Find the correlation coefficient for the data.
I got this part of my answer. I believe the answer to be 0.9767
I am just going crazy with the second part.
 Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.
Thanks :)

Using an online calculator, I found the following:
6 data pairs (x,y):
( 0.00 , 93.0 ); ( 1.00 , 93.0 ); ( 2.00 , 77.0 ); ( 3.00 , 68.0 ); ( 4.00 , 65.0 ); ( 5.00 , 54.0 );
r = 0.977 (rounded to 3 decimal places)
Equation for the regression line:
predicted y = 95.6  8.23x
Substitute 3.5 for x in the regression equation to calculate y.
I hope this will help.
Respond to this Question
Similar Questions

stats
Can someone please help me, I have been working on this for 2 hours now and I keep getting a negative answer. You are given the following data. Number of Absences Final Grade 0 99 1 94 2 79 3 73 4 68 5 53  Find the correlation coefficient … 
Math
You are given the following data. # of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for the data. B. Find the equation for the regression line for the data, and predict the final grade of a … 
Stats
You are given the following data. # of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for the data. B. Find the equation for the regression line for the data, and predict the final grade of a … 
PLZ HELP....STATS
You are given the following data. # of Absences Final Grade 0 96 1 92 2 71 3 66 4 60 5 51 A. Find the correlation coefficient for the data. B. Find the equation for the regression line for the data, and predict the final grade of a … 
Statistics
2. You are given the following data. Number of Absences Final Grade 0 93 1 90 2 79 3 66 4 60 5 56  Find the correlation coefficient for the data.  Find the equation for the regression line for the data, and predict the final grade … 
statistics
You are given the following data. Number of Absences Final Grade 0 95 1 91 2 82 3 69 4 67 5 58  Find the correlation coefficient for the data.  Find the equation for the regression line for the data, and predict the final grade of … 
statistics
The data below are the average oneway commute times (in minutes) of selected students during a summer literature class and the number of absences for those students for the term. Calculate the linear correlation coefficient. 
statistic
For the following dataset, enter the data into a calculator and find the least square regression line, correlation coefficient, and coefficient of determination. step by step please X1 Y1 10 8.04 8 6.95 13 7.58 9 8.81 11 8.33 14 9.96 … 
statistics
how do I find the correlation coefficient r? 
Statistics
The correlation coefficient between X and Y is the same as the correlation coefficient between Y and X. True  If you were to find the correlation coefficient with a given data set for x and y, it would have the same correlation coefficient …