(a)
The following table shows the math and science scores for 5 students.
Math Score Science Score
60 65
53 59
44 57
61 61
70 67
Part A
Follow the directions on this website to calculate the line of best fit on your calculator (a is the slope, and b is the y-intercept). Write the equation of the line of best fit below in the form y=mx+b (round all values to the nearest tenths 1 number after the decimal).
Part B
What does the value of the correlation say about the relationship between math scores and science scores for these students?
(b)
.
A
There is basically no correlation
B
There is a weak positive correlation
C
There is a weak negative correlation
D
There is a strong positive correlation
E
There is a strong negative correlation
(c)
Part D
Using your line of best fit, estimate the expected science score for a student with a math score of 65 (round to the nearest whole number.
(a) The equation of the line of best fit is y = 1.0x + 19.2.
(b) B. There is a weak positive correlation.
(c) The expected science score for a student with a math score of 65 is 80.