Exploring Scatter Plots and Line Equations

The video tutorial introduces scatter plots and their use in analyzing data trends. It follows Shana, a hairdresser for the Medusa family, who tracks her tips over weeks using a scatter plot. The tutorial explains independent and dependent variables, and how to identify positive, negative, and no correlation. Shana uses the line of best fit to predict future earnings, helping her decide to invest in snake-proof gloves. The video emphasizes the practical application of scatter plots in making informed decisions.

Why is Shana motivated to track her tips?

• To buy snake haircutting gloves

• To see if she can afford a vacation

• To pay off her student loans

• To save for a new car

What does Shana use as her independent variable in the scatter plot?

• Tips

• Weeks

• Number of haircuts

• Amount of taxes

In week 2, how much did Shana earn?

• $165

• $150

• $125

• $100

What type of correlation is shown when both variables increase together?

• Negative Correlation

• No Correlation

• Positive Correlation

• Inverse Correlation

What does Shana predict her earnings will be after 20 weeks?

• $150

• $160

• $170

• $180

Why does Shana decide to invest in snake-proof gloves?

• Because her tips are decreasing

• Because her tips are increasing

• Because she got a bonus

• Because she won a lottery