the mean length of adult Etheostoma caeruleum in a stream is 6.1 cm, and length distribution follows a nor- mal distribution with a standard deviation of 0.8 cm. What is the probability that the length of a randomly selected adult will be 5.2 cm or larger? (a) On the normal density curve to the right: put numbers on the X-axis for the mean and 5.2 cm; indicate the mean with an arrow; and shade in the area under the curve that contributes to the prob- ability that this question is asking for. (b) Calculate the probability. Length (cm) Probability density

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