Adapted from a Powerpoint Presentation by Jill Gough,The Kiski School,

Estimating Age Worksheet People In The News Estimated Age L 1 Actual Age L 2 Using your table like the one shown below. Write the name of each individual and enter their estimated age.

Robert Pattinson

Oprah Winfrey

Orlando Bloom

Katie Holmes

Serena Williams

Michael Jordan

Hillary Clinton

J.K. Rowling

Matthew McConaughey

Sheryl Crow

Paul McCartney

Kristin Kruek

Ryan Seacrest

Carly Patterson

Clint Eastwood

Penelope Cruz

Steve Nash

Gwen Stafani

Emeril Lagasse

Dakota Fanning

Bill Cosby

How well did you estimate? Enter the actual age of each of these individuals in L 2.

Robert Pattinson n May 13, 1986 n 27

Oprah Winfrey n January 24, 1954 n 59

Orlando Bloom n January 13, 1977 n 36

Katie Holmes n December 18, 1978 n 34

Serena Williams n September 26, 1981 n 32

Michael Jordan n February 17, 1963 n 50

Hillary Clinton n October 26, 1947 n 65

J.K. Rowling n July 31, 1965 n 48

Matthew McConaughey n November 4, 1969 n 43

Sheryl Crow n February 11, 1962 n 51

Paul McCartney n June 18, 1942 n 71

Kristin Kruek n December 30, 1982 n 30

Ryan Seacrest n December 24, 1974 n 38

Carly Patterson n February 4, 1988 n 25

Clint Eastwood n May 31, 1930 n 83

Penelope Cruz n April 28, 1974 n 39

Steve Nash n February 7, 1974 n 39

Gwen Stafani n October, n 44

Emeril Lagasse n October 15, 1959 n 54

Dakota Fanning n February, 23, 1994 n 19

Bill Cosby n July 12, 1937 n 76

Let us analyze the data n Enter the data into L 1 and L 2 on your graphing calculator. n Analyze your data in L 1 using 1-Var Stats. n Record the information on your table like the one shown on the following slide. n Repeat this for L 2 and record this information on your table. n Discuss how your data from L 1 compares with the data from L 2.

1- Var Stats 1- Var Stats L 1 1- Var Stats L 2 x ∑x ∑x 2 Sx σxσxσxσx n MinX Q1Q1Q1Q1 Med Q3Q3Q3Q3 MaxX

Graph the Data n Create a scatter plot of your data on the graphing calculator. n Set up the window to fit your data. n Graph the line y = x. n Draw a sketch of your scatter plot and the line y = x. n Discuss how your data fits the line.

Write a report on your findings. n Summarize n Summarize your results using the data table and your scatter plot. n Are n Are you surprised? Explain.