Question

How do you find variance and standard deviation in finite math?

a) Divide the sum of squared differences by the sample size.
b) Take the square root of the sum of squared differences.
c) Find the average of squared differences from the mean.
d) Add up all the differences between data points.

Answer 1

To find variance in finite math, calculate the average of the squared differences from the mean. To find standard deviation, take the square root of the variance.

Step-by-step explanation:

The variance is the average of the squares of the deviations (the x - x values for a sample or the x-µ values for a population). To find the variance, you can calculate the average of the squared differences from the mean. This can be done by dividing the sum of squared differences by the sample size.

Once you have the variance, you can find the standard deviation by taking the square root of the variance. The standard deviation is a measure of the spread of data and is equal to the square root of the variance.