What random means

A coin spins before every cricket match. No one can call it for sure. To call a toss is to name its result before it lands.

Nobody calls the next one

Random — a result nobody can name before it happens. A toss is random. You know the possible results: heads or tails. You cannot say which one will come.

The past tosses do not help. A fair coin is equally likely to show heads or tails. For a fair coin, ten heads in a row change nothing. Each toss is separate from the earlier ones. So the next toss is as uncertain as the first.

A whole run can be described

One toss cannot be called. A long run can be described. A run is many tosses in a row. "About half were heads" is a real claim for a fair coin. You can check it.

Four of six calls were right this time. With a fair coin, no way of calling beats half right. That holds over a long run.

Rule: The next toss cannot be called. A whole run can be described.

Call each toss. See how you score.