In the western United States, water is sometimes diverted from mountain streams and rivers to be used for agriculture and municipal water supplies. Diverting too much water raises the water temperature in the mountain streams and rivers, affecting the fish that live there. A certain mountain river is abundant in brown trout and has water diverted from it for city use. Assume that the water temperature along all locations of the river has a distribution with mean 18°C and standard deviation of 2°C. A sport-fishing group plans to measure the water temperature at 64 randomly selected locations along the river?