Studied by 153 people

0.0(0)

get a hint

hint

Tags & Description

0%

16 Terms

1

New cards

r^2

Coefficient of Determination

New cards

2

New cards

r

Correlation Coefficient

New cards

3

New cards

...the line is a perfect positively sloped line.

If the r value is 1 then...

New cards

4

New cards

...the line is a perfect negatively sloped line.

If the r value is -1 then...

New cards

5

New cards

LinReg(ax+b) or LinReg(a+bx)

LSRL / Least Square Regression Line

New cards

6

New cards

The difference between an actual value ( y ) and a predicted value ( y hat ). (y) - (y hat)

Residual

New cards

7

New cards

Located below the LSRL

Negative Residual

New cards

8

New cards

Located above the LSRL

Positive Residual

New cards

9

New cards

Must be interpreted to help confirm a linear relationship.

Residual Plot

New cards

10

New cards

Must have a "good" r value and a "good" residual plot

Linear Relationship

New cards

11

New cards

Use technology or formulas for slope and y intercept from your formula sheet

Finding the LSRL

New cards

12

New cards

Minimizes the sum of the areas formed by squaring the residuals.

Concept of the LSRL

New cards

13

New cards

In bi-variate data, drastically changes the r value, slope, and y intercept

Influential Point

New cards

14

New cards

Used to find a z score or location

invNorm

New cards

15

New cards

Used to find an area / probability

normalcdf

New cards

16

New cards

...always located on the LSRL.

The coordinate x bar, y bar is ...

New cards