Thread: probability distributions

A coin is tossed 8 times. Calculate the probability of tossing
a) 6 heads and 2 tails
b) 7 heads and 1 tail
c) at least 6 heads

Originally Posted by shell

A coin is tossed 8 times. Calculate the probability of tossing
a) 6 heads and 2 tails
b) 7 heads and 1 tail
c) at least 6 heads

c.

Thank you for your help. But I am really struggling with this concept... do I use that equation for a) and b) also?

Originally Posted by shell

Thank you for your help. But I am really struggling with this concept... do I use that equation for a) and b) also?

What do you understand about binomial distributions?
That is after all what this question is all about.
Your textbook should contain a complete explication of that topic.
If you need more, see this.