A random process – such as rolling a die – requires that all six numbers have an equal chance of being drawn.
In a repeated random process, such as tossing a coin, a head and a tail have an equal chance of coming up.
We cannot predict with certainty the result of any individual toss because of the random variation, but after many tosses the expectation is that about half of the outcomes will be heads and half tails.
Watch a demonstration of a Randomisation in Coin Tosses video.
You can download the Randomisation in Coin Tosses video transcript. You can also download the Randomisation in Coin Tosses slide presentation slide presentation to use with your class.