20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 % 20 35 M 70
2. Select all the statements that are true about standard deviation.
a.
It is a measure of center.
b. It is a measure of variability.
c.
It is the same as the MAD.
d. It is calculated using the mean.
e.
It is calculated using the median.
1