1. a player made 13 of 20 throws. what is the experimental probability of making the next free throw?
2. when tossing a coin 3 times what is the probability getting exactly one tail?

please help i will truly appreciate it ?

Question

1. a player made 13 of 20 throws. what is the experimental probability of making the next free throw?
2. when tossing a coin 3 times what is the probability getting exactly one tail?

 please help i will truly appreciate  it ?

tamtoan · Answer

the player made 13 out of 20 attempts, probability of making 1 is 13/20

on the problem 2, list out all the possibilities and see how many with exactly 1 tail ...divide the total outcome 

ex:   HHH, HHT (exactly 1 tail here), HTT , THH , ..and so on...this i think you can do it right.