I am working on a Biology Lab (Probability and Genetics Lab). I have the following question: How close did your. actual results come to your expected...

I am working on a Biology Lab (Probability and Genetics Lab). I have the following question: How close did your. actual results come to your expected results? What caused the difference. I have NO idea how to get the expected number (and I'm not sure I know what the caused the difference if there is one).

We had to flip 2 coins 50 times and tally each heads and tails (which equaled a genotype of BB, Bb, and bb. My results are BB - 20, Bb - 22, bb - 8.

Can you please help me? If you need additional information, pls let me know.

Thank you!