Don't understand statistics? Wanna bet?

Guess the number of 'heads' out of 10 coin tosses, and you can keep this.

I think we tend to belabour the problem of statistical significance testing sometimes. The whole process is very intuitive.

Let me take you through a thought-experiment to show you this.

"I'm going to toss a coin 10 times. And to make it interesting, let me put this pineapple (Australian $50 note) on the table and make you this offer:

"If you guess the exact number of heads in the next ten coin tosses that I make, I will give you the $50. If you don't guess it exactly, I get to keep my $50. Are you willing?"

So assuming that you see that participating in this gamble is a "no-brainer", you say:

"Yes, sure." 

So what number of coin tosses will be heads? Make your guess now.