Assume that 500,000 people take the ged exam (high school proficiency exam) each year and their scores form a normal distribution. what percent of students score within one standard deviation of the mean?

68.27%

Step-by-step explanation:

Assuming a normal distribution, the empirical 68–95–99.7 rule, determines that the percentage of students that score within one standard deviation of the mean is 68.27%, the percentage within two standard deviations is 95.45% and within 3 standard deviations is 99.73%.

Therefore, the answer is 68.27%.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.