## anonymous 4 years ago If you toss three coins 100,000 times, how many times do you expect to see exactly one head come up? A ..12,500 B ..37,500 C..3,750 D.. 50,000

1. mathmate

hint: Sample space is 8.

2. Akshay_Budhkar

oh mathmate already gave u hint..sorry :P

3. anonymous

So whats the anwser A B C D

4. Zarkon

3/8

5. anonymous

im so not good with fractions

6. Akshay_Budhkar

my bad.. yea $3 \over 8$ sorry zarkon

7. Akshay_Budhkar

${ 3 \over 8 } \times 10,000$

8. Akshay_Budhkar

9. anonymous

How do i figure that out?

10. Zarkon

you need one more zero ;)

11. Akshay_Budhkar

ok the probability of getting exactly 1 head is$3 \over 8$.. u can get that by checking the sample space of this event

12. Akshay_Budhkar

oh my bad :( -_- . i must go to sleep @Zarkon :P

13. anonymous

im new at this i have no clue what u mean by checking sample space. cant you jus give me the anwser? so then i can figure it out lol

14. Akshay_Budhkar

$37,500$

15. anonymous

Thank you. i figuired it out before you even wrote back :D lol

16. Akshay_Budhkar

Lol