scores falls question

Question

If a normally distributed data set has a mean of 10 and a standard deviation of 5, within what range will approximately 68% of the scores fall?

Group of answer choices

Answer 1

Approx 68% of the data will lie within one standard deviation from the mean or between the (mean + 1 std dev) and the (mean - 1 std dev), so between (10 + 5) and (10 - 5) or between 15 and 5.

So approx 68% of the scores will fall between a scores of 5 and 15.