predictable randomness

A random event such as a coin toss becomes predictable when repeated on a large scale I.e.
1 million coin tosses will result in a more predictable outcome , we can say with confidence (unless the coin is corrupt)
that there would be an essentially equal number of heads and tails!

Though I can not predict the outcome of a single coin toss with better than a 50/50 (50%) accuracy, predictable randomness allows me to confidently predict the outcome of a million coin tosses with a 99+% accuracy.