Correlation of Variables

When comparing sets of data on a coordinate grid, you can often see one of three general patterns emerging. In one case, you might notice that when the values for one variable rises, so do the values for the second variable. These situations are labeled as ones with positive correlation. Conversely, if one set of values tends to decrease as the other set's values increase, then we say the correlation is negative. Sometimes, there doesn't seem to be any pattern emerge between the two sets of data. In this case, we say the data has no correlation. Several examples of each of these were shared.

A quick review about correlation can be found at this website: http://brightstorm.com/math/algebra/introduction-to-statistics/scatterplots-and-correlations/

We also used measures of central tendency (mean, median, mode) to solve problems. Visit this website for a review on calculating the mean:
http://brightstorm.com/math/algebra/introduction-to-statistics/mean/

Tonight's Homework: Do all problems on the tan and buff colored worksheets.