3/22 Scatter Plot Practice

1.  Today you will need a computer, 1 piece of graph paper, a ruler, and a pencil

2.  Red Vines Scatter Plot practice

Instructions:

1.  Make a small T-chart on your paper.  Label the quantities "bites" and "length (in cm)"
2.  Measure your Red Vine.  Place it in your T-chart next to 0 bites
3.  Take a bite of your Red Vine.  Measure the new length and add the data to your table
4.  Repeat step 3 until your Red Vine is finished
5.  Input your data into the Google Form in Classroom
6.  Work on "Bird's Eggs" (worksheet) while waiting for everyone to input their data
7.  Make a scatter plot (by hand) of the class data

Data Analysis (questions to be answered in your notebook):

1. Is their a correlation between bites and length?  If so, state the types of association (pages 287-288 might help you).
2. Are there any outliers?
3. Draw a line of best fit on your scatter plot
4. Find the rule for you line of best fit.  Remember:  y = mx + b,  where m is the slope
5. Use your line to predict how long the Red Vine will be if you take 3 bites.
6. Use your rule to predict how long the Red Vine will be if you take 4 bites.

3.  Finish Bird's Eggs after your analysis is complete