Descriptive Statistics

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

1. The is the 50th percentile.
2. The is the score with the greatest frequency.
3. The for a distribution is the sum of the scores divided by the number of scores.
4. The is the distance from the upper real limit of the highest score to the lower real limit of the lowest score.
5. The average squared distance from the mean is called the .
6. A measure of the degree to which the scores in a distribution are clustered together or spread apart is called .
7. The is the distance from the mean. And, more specifically, the is the distance between the score and the mean.
8. The mean, median, and mode are all measures of .
9. The is the square root of the variance.
10. The is the sum of the squared deviation scores.