# I am having problems calculating the population variance. I am okay for the first 4 steps in the procedure to finding the population variance and the population standard deviation. i get getting the incorrect answer when i try to divide by "N" to get the variance. it is not a problem in the textbook but it is problem in ConnectMath.

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.

I am having problems calculating the population variance. I am okay for the first 4 steps in the procedure to finding the population variance and the population standard deviation. i get getting the incorrect answer when i try to divide by "N" to get the variance. it is not a problem in the textbook but it is problem in ConnectMath.

Step by step

Solved in 3 steps with 1 images