Discrete Random Variable Calculator Math
You can input only integer numbers decimals or fractions in this online calculator 2 4 5 7.
Discrete random variable calculator math. Population and sampled standard deviation calculator. Mu μ is defined as follows. Enter data values delimited with commas e g. Standard deviation σ calculator with mean value variance online.
E x k 1 n p k x k. E x μ i 1 n x i p x i e x mu displaystyle sum i 1 n x i p x i e x μ i 1 n. P x x i p i k 1 n p k 1. 3 2 9 4 and press the calculate button.
The formula for calculating the expected value of a discrete random variables. Xi all possible outcomes. Is x is a discrete random variable with distribution. Ev p x i x i.
Enter probability or weight and data number in each row. P xi probability. Then expected value is. Discrete random variable variance calculator.
This formula shows that for every value of x in a group of numbers we have to multiply every value of x by the probability of that number occurs by doing this we can calculate expected value. 3 2 9 4 or spaces e g. Code to add this calci to your website discrete random variable s expected value variance and standard deviation are calculated easily.