Expected number : The expected number of $n$ repetitions of a random experiment that is described by a random variable $X$ is defined as $n\cdot E[X].$

Hundred : Hundred refers to the number 100.

Number : A number $x$ is a mathematical symbol representing a quantity.

Probability : A probability is a number between 0 and 1 that describes how likely an outcome is. For discrete events that are equally likely the probability can be calculated by dividing the number of favorable outcomes by the number of possible outcomes.