The lengths of a certain species of fish are approximately normally distributed with a given mean (look at the picture) and stan
dard deviation (look at at the picture) . According to the Empirical Rule, what percentage of the fish will have lengths within 1 standard deviation of the mean?
34%
47.5%
68%
99.7%
34%
47.5%
68%
99.7%
2 answers:
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