Purchase Solution

# Correlation and Regression

Not what you're looking for?

Consumer Debt: Bank credit card debt has risen steadily over the years.
The table gives debt per household in 1994 dollars.

Year (x)      1975       1980     1985     1990     1995
Debt (y)      270       650    1100    1800    3100

a.  Plot the data.  Does the graph show a linear pattern?
b.  Find the equation of the least squares line and graph it on the same axes.  Does the line appear to be a good fit?
c. Find and interpret the coefficient of correlation.
d. If this linear trend continues, when will household debt reach \$3300?

##### Solution Summary

Find the equation of the least squares line finds and interprets the coefficient of correlation.

##### Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

##### Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

##### Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

##### Probability Quiz

Some questions on probability

##### Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.