Question

Need help with a probability question ?

Answer 1

with a fair coin there is a chance of getting tails is 1/2

Answer 2

to get 4 tails in a row that is
1/2*1/2*1/2*1/2 = 1/2^4= 1/16

Answer 3

Okay I follow

Answer 4

oaky ill draw the 2nd scenario for you, you can try to figure it out

Answer 5

you have 3 cases

Answer 6

Ummmm.... 3/4 chance to get tails in the first case?

Answer 7

okay remember this what we solve first
T T T T= 1/2^4

Answer 8

now we have
T H T T

Answer 9

maybe you should go back to tree diagrams

Answer 10

I'm sorry, just having trouble following.