# The Student Success Commons at York County Community College: MAT 124: Statistics

## CHAPTER 3

#### Quickly calculate permutations in either StatCrunch or Microsoft Excel

##### Note: Your course will not cover Exhaustive Events so you can stop watching this video at time index 2:09
Factorials overview

## CHAPTER 7

#### QUICK NOTES:

Either hypothesis—the null hypothesis or the alternative hypothesis—may represent the original claim!

Regardless of whether you're making a statement about the mean or a proportion, regardless of which hypothesis is the claim, remember that the null hypothesis must contain a symbol of equality and the alternative hypothesis must complement it. Here are some examples of possible hypothesis pairs:

## CHAPTER 9

#### Use StatCrunch to find the correlation coefficient and create a scatter plot.

Note: For an example of making a prediction or forecast using your pre-calculated linear regression equation, skip to 7:25 and watch until 8:15. Also note that the presenter arbitrarily rounds the values of a and b. Be sure to round as indicated on your homework, quizzes, or tests.

### Student Success Commons at York County Community College

##### 112 College Drive Wells, ME 04090Room 201ycccssc@mainecc.edu 207-216-4300

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