Barbara is a research biologist for Green Carpet Lawns She i

Barbara is a research biologist for Green Carpet Lawns. She is studying the effects of fertilizer type, temperature at time of application, and water treatment after application. She has six fertilizer types, six temperature zones, and six water treatments to test. Determine the number of different lawn plots she needs in order to test each fertilizer type, temperature range, and water treatment configuration

Solution

There are (6 fertilizer types)*(6 temperature zones)*(6 water treatments) = 216 configurations [ANSWER, 216]