The following is a set of data from a sample of n = 5.
2 -2 -7 2 1
a. Compute the mean, median, and mode.
b. Compute the range, variance, standard deviation, and coefficient of variation.
c. Compute the Z scores. Are there any outliers?
d. Describe the shape of the data set.
(Round to two decimal places as needed.)
c. Compute the Z scores.
Data (X)
2
-2
-7
2
1
(Round to two decimal places as needed.)
Are there any outliers?
Yes
No
d. What is the shape of the data set?
Positive (right-skewed)
Negative (left-skewed)
Symmetrical
Z Score