Barbara is a research biologist for Green Carpet Lawns. She is studying the effects of fertilizer type, the temperature at the time of application, and water treatment after application. She has four fertilizer types, three temperature zones, and three water treatments to test. How many different configurations of tests are possible?

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%

A50% increase followed by 33 1/2% decrease

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83