Question

the distribution function of a discrete random variable. What does the summation mean ?
​

Answer 1

Answer:

A random variable is a variable taking on numerical values determined by the outcome of a random phenomenon. ... A discrete random variable has a countable number of possible values. The probability of each value of a discrete random variable is between 0 and 1, and the sum of all the probabilities is equal to 1.

Step-by-step explanation:

please mark my answer as brainleast