Question

The weight of oranges growing in an orchard is normally distributed with a mean weight of 5.5 oz. and a standard deviation of 1 oz. Using the empirical rule, determine what interval would represent weights of the middle 68% of all oranges from this orchard.
pleaseeee help me now, im taking a test and it's timed

Answer 1

The interval is (4.5, 6.5)

This is bevause 1 standard deviation contains 34% of the sample in a normal distribution, so 1 standard deviation on either side is 68% and so you +\- 1 oz from the mean.