the lengths of a certain species of fish are approximately normally distributed with a given mean $mu$ and…

the lengths of a certain species of fish are approximately normally distributed with a given mean $mu$ and standard deviation $sigma$. according to the empirical rule, what percentage of the fish will have lengths within 1 standard deviation of the mean?\n34%\n47.5%\n68%\n99.7%

the lengths of a certain species of fish are approximately normally distributed with a given mean $mu$ and standard deviation $sigma$. according to the empirical rule, what percentage of the fish will have lengths within 1 standard deviation of the mean?\n34%\n47.5%\n68%\n99.7%

Answer

Explanation:

Step1: Recall Empirical Rule

The Empirical Rule for a normal - distribution states that about 68% of the data lies within 1 standard deviation of the mean, about 95% lies within 2 standard deviations of the mean, and about 99.7% lies within 3 standard deviations of the mean.

Answer:

C. 68%