8 3 pts A population of / = 5 scores has a mean of u = 20 and a standard deviation of o = 4. Which of the following is the correct interpretation of the standard deviation? O The average distance of scores from the mean of p = 20 is 5 points. The average distance of scores from the mean of u = 20 is 1 point. O The average distance of scores from the mean of u = 20 is 4 points. O The average squared distance of scores from the mean of u = 20 is 4 points