guys pasagot po please

Answer:
1.the range is an area of variation between upper and lower limits on a particular scale.
2.The average absolute deviation of a data set is the average of the absolute deviations from a central point
3.The standard deviation is a measure of the amount of variation or dispersion of a set of values
4.The variance is the expectation of the squared deviation of a random variable from its mean
Step-by-step explanation:
paki brainlest nlng po salamat