## Probability – the OR case We are continuing our discussion of Probability. If you missed the introduction and the “and” case of probability, here you go. Probability – the AND case Remember that probability is the odds or percentage of likelihood of an event happening in a given set of circumstances. The range of probability is from 0 to 1, where 0 is absolute impossibility […]

## Probability – the AND case The concepts of probabilities are so useful in the understanding of everyday life. The concepts give insight into many areas that aren’t necessarily math related. A few minutes of practice with these concepts will add to your ability to analyze many situations in your life. Probability is the odds of a given event happening in a given set of circumstances. […]

## Permutation and Combination and What is a Factorial? If you have 7 different options on the menu and you can order 2 of them for your combo-meal, how many possible meal combinations are there?  To figure this out, you need only a simple formula and a cool math operation called the factorial. What is a factorial? The factorial is written as an integer with an exclamation point (!).  […]

## What are Prime Numbers? Is 2 a prime number? Prime numbers are any numbers that cannot be evenly divided by any integer other than 1 and itself. Or in other words, the only numbers that you can multiply to get a prime number are 1 and the prime number. Numbers that are not prime, or those with additional factors other than 1 and itself, are called composite numbers. The […] 