-- Binomial Probability -- (1 Viewer)

[Angel_a]

fitzpatrick ex 39b q.25

if ten coins are tossed 50 times, in how many cases would we expect the number of heads to exceed the number of tails??



Anyone please help~~? THx!
i dont even get wat the question is asking -_-..

the answer:: 19

 

[omniscience]

that's pretty easy.

 

[Timothy.Siu]

fitzpatrick ex 39b q.25

if ten coins are tossed 50 times, in how many cases would we expect the number of heads to exceed the number of tails??



Anyone please help~~? THx!
i dont even get wat the question is asking -_-..

the answer:: 19

okay, take it step by step. the first part is finding how many times/probability there will be more heads than tails when u toss ten coins. (i.e. 6,7,8,9,10 heads).
then it asks you if you did that 50 times, how many times that'll happen.
so basically from the answer u can see it happens 38% percent of the time.

 

[Angel_a]

THANKSS!! i get it now =D