1) Using the following formula, calculate the mean for the following distribution. Ex= X = IIIIII + 2) Using the following formula, calculate the deviation for each of the following raw scores if the mean of the distribution is 4. Deviation= x - x a. 2 x - X= b. > x - X= C. 7 X - X= Which measures of central tendency can one use for items measured on each level of measurement? (Remember you have three measures of central tendency and four levels of measurement). a. Mode b. Median c. Mean