Explanation:Every cumulative distribution function F is non-decreasing and right-continuous. 3. Which of the following of a random variable is a measure of spread ?
A. variance
B. standard deviation
C. empirical mean
D. All of the Mentioned
Answer:A
Explanation:Every cumulative distribution function F is non-decreasing and right-continuous. 3. Which of the following of a random variable is a measure of spread ?
A. variance B. standard deviation C. empirical mean D. All of the Mentioned
Explanation:Densities with a higher variance are more spread out than densities with a lower variance. 4. The square root of the variance is called the ________ deviation.