# Calculating mean, variance, and standard deviation for a given distribution.

Not what you're looking for?

A recent survey by an insurance company showed the following probabilities for the number of automobiles each policyholder owned. Find the mean, variance, and standard deviation for the distribution.

X:Automobiles - 1 2 3 4

P(X) 0.5 0.35 0.11 0.04

Please include formulas.

##### Purchase this Solution

##### Solution Summary

The following outlines the process of calculating mean, variance, and standard deviation. The probability for the number of automobiles for policyholders are analyzed.

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.