Friday

March 6, 2015

March 6, 2015

Posted by **john** on Monday, May 5, 2008 at 10:53pm.

a)I need the correlation between x and y

b)slope of linear regression

c)y intercept of linear regression for the points

(1,8)(2,6)(3,4)(4,2)(5,5)

- math -
**Reiny**, Tuesday, May 6, 2008 at 8:40amYour first 4 points follow a nice linear relation, the last point does not fit the pattern, perhaps you made a typo.

taking any two of the first two points gives us a slope of -2

using y = mx + b gives us y = -2x + b

sub in any point, e.g. (1,8)

8 = -2(1) + b

b = 10

a) the correlation between x and y is

y = -2x + 10

b) slope = -2

c) y intercept is 10

(your last point given (5,5) should have been (5,0) making it the x-intercept)

**Answer this Question**

**Related Questions**

MATH - A data set has the following points: (0, 2), (4, 1), (6, 0) The slope of ...

Statistics - The following linear equation, y = b0 + b1x, is a regression line ...

Algebra 2 - A data set has the following point: (1,8)(2,7)(3,5) The slope of ...

math gre ques - A sudent is analyzing data from an experiment using a linear ...

statistics - A sudent is analyzing data from an experiment using a linear model...

Stats - x y 1 -10.0 2 -20.0 3 -30.0 4 -40.0 5 -50.0 - What would be the slope of...

Stats - Construct a scatterplot for the (x, y) values below, and answer the ...

math - Data were recorded for the demand and revenue of a given product. Find ...

Math - A. If the correlation coefficient is 0.65, what is the sign of the slope ...

statistics - If the correlation coefficient is -0.54, what is the sign of the ...