You survey 200 people about electronics they own. the results show that 33 over 40 people own a cell phone. of these people, 10 over 11 also own an mp3 player. a. what fraction of the people own a cell phone and an mp3 player? b. how many people own a cell phone, but not an mp3 player? explain?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%