Guess their age

To Do: Guess the ages of the given celebrities and write this in the 2nd column. When you are completed write a sentence about what influenced your guess.

Actual Ages

Tiger Wood-37 Raven Symone-27 Eddie Murphy-52 Daniel Radcliffe-24 Tobey Maguire-38 Barak Obama-52 Oprah Winfrey-59 Beyonce Knowles-32 Johnny Depp-50 Britney Spears-31 Betty White-91 Tom Hanks-57 Mike Krzyzewski-66

Scatter Plots

Scatter plots Used to show a relationship between data We always have 2 sets of data The independent set of data is graphed on the x-axis The dependent set of data is graphed on the y-axis Dependent data Independent data

Line of best fit This line should be close to as many points as possible Best fit lines can be estimated by choosing two points to create your line OR they can be found exactly with your calculator…. Put your data into the lists using STAT and EDIT Find the line of best fit using STAT , CALC, #4 ax+b

What you need to know for your test! How to draw a scatter plot Label BOTH axis with numbers and units Determine the line of best fit with your calculator Create a word problem/story that is realistic and matches your equations Use units for the x and y Interpret slope and the y-intercept in the context of your story