Question 366318
By the property of a normal distribution, the probability that a brook trout's length a.)exceeds the mean is 0.50,
b.) exceeds the mean by at least 1 standard deviation is about 0.16 (by adjusting the 68-95-99.7 rule),
c.)exceeds the mean by at least 2 standard deviations is about 0.025(by adjusting the 68-95-99.7 rule),
d.)is within 2 sd's is 0.95.