Assignment Week 4 Study Guide Rated A

Assignment Week 4 Study Guide Rated A+ When reporting descriptive data such as the Mean, what additional information should also be reported that expresses how different the scores are in the distribution? If you subtract the smallest number in the distribution from the largest, what type of variability is being calculated? What is the range for the following set of scores: 117, 249, 326, 47, 442? Which measure of variability is a measure of the average distance from the mean? Which of the following is not a measure of variability? What are the three tools used to assess variability? In the formula for computing the range, what does the letter "l" represent? In the formula for calculating the standard deviation, what does the Greek letter "Σ" represent? When calculating the standard deviation, what must be done in order to obtain an unbiased estimate? Which of the following sets of scores has the greatest variability? What is the formula for calculating the exclusive range? What is the formula for calculating the inclusive range? The sum of the absolute value of the deviations from the mean divided by the number of scores is equal to: The sum of the deviations from the mean will always be equal to ______________. What is obtained by squaring the standard deviation? What is the variance for the following set of scores: 10, 15, 12, 18, 19, 16, 12? What is the standard deviation for the following set of scores: 20, 24, 26, 22, 18, 16, 18? Unbiased estimates: If Σ(X - M)2 = 235, and n = 29, what is "s"? As your sample size grows larger, your standard deviation will be: If n = 24 and s = 1.56, what is the variance? If you have a variance of 9, your standard deviation will be: It is possible for a set of data to have no variability. The standard deviation is sensitive to extreme scores. A standard deviation equal to 0 indicates no variance in your data.