Question

The length of brook trout caught in a certain colorado stream has a mean of 14 inches and a standard deviation of 3 inches. what lower limit should the state game commission set on length, if it is desired that 80 per cent of the catch may be kept by fisherpersons? 12.80 inches 11.48 inches 12.4l inches 12.00 inches

Answer 1

The 20th percentile of your distribution is x = 11.48 inches, the 2nd selection.