1. The mean value in a dataset is 50. A data value of 42 is 1.33 SDs below the mean. What is the value of one standard deviation? Enter your response as a positive or negative whole number.

2. The mean value in a dataset is 100, and the value of one standard deviation is 20. What is the value of a piece of data is 2.5 SDs above the mean?

3. The mean value in a dataset is 20 and 1 SD = 5. How many SDs away from the dataset is a score of 14? Enter your response as a positive or negative number rounded to the nearest 10th.

4.

Calculate the sum of the squared deviations for the data represented in the table below. Data Value Frequency 3 10 4 11 5 13 6 9