11) The statistics professor has kept attendance records and recorded the number of absent students per class. The recorded data is displayed in the following bar chart with the frequency of each number of absent students shown above the bars. Frequency 45 40 35 30 25 20 15 10 5 0 How 9 0 many 22 ili.. 13 A) 8 B) 13 42 31 C) 22 D) 43 1 2 3 4 5 Number of Students Absent per Class statistics classes had three or more students absent? 8

The data sets give the ages of award winners from 2000 to 2005 at the time of the award. Use the data to answer the questions. Men Women a) Without calculating, which data set has the greater mean age? Year 2000 2001 2002 STABI 2003 2004 2005 ~ Men Age Phil 44 39 Geoff 47 Chris Ed Sean 33 41 Mike 46 b) Verify your conjecture from part (a) by calculating the mean age for each data set. Mean (Men) 41.67 Mean (Women) 29 (Round to the nearest hundredth as needed.) IT Year 2000 2001 2002 2003 2004 2005 Women Megan Elizabeth Katherine Tanya Susan Jennifer Age 24 35 27 27 29 32