What percentage of data lies between the mean and one standard deviation above the mean?
Required
1 point
1
Question 2
2.
The weight of chocolate bars from a particular chocolate factory has a mean of 8 ounces with a standard deviation of 0.1 ounces. What percentage of the produced bars weighs less than 7.9 ounces? (Use the Empirical Rule)
Required
1 point
1
Question 3
3.
The heights of male students is normally distributed with a mean of 170 cm and a standard deviation of 8 cm. Find the percentage of male students whose height is between 154 cm and 170 cm. Draw and label the bell curve.