## anonymous one year ago Four coins are tossed simultaneously. What is the probability that all 4 coins will land on heads? Type your answer as a percent

1. anonymous

50%

2. anonymous

That is incorrect

3. anonymous

4. anonymous

what do I do idk I thought it was close to that

5. anonymous

You multiply the percentages together. What's the chance of getting a head on a coin flip?

6. anonymous

7. anonymous

So they all have a 50% chance of being heads. Now multiply the percentages together. It might be easier to write it as $$\large \frac{1}{2}$$ when you multiply them.

8. anonymous

50% is wrong snuffitaly I checked it on there

9. Vocaloid

the probability of ONE coin being heads is 50% however, we have FOUR coins here, so we must multiply 50% 4 times (0.5)*(0.5)*(0.5)*(0.5) does that make a little more sense?

10. anonymous

11. anonymous

So would it be 200?

12. Vocaloid

um, not quite... put in (0.5)*(0.5)*(0.5)*(0.5) into your calculator and tell me what you get

13. Vocaloid

* means multiply

14. anonymous

$\large \frac{1}{2} \times \frac{1}{2} \times \frac{1}{2} \times \frac{1}{2}$

15. anonymous

0.0625 is what i got

16. Vocaloid

right, so convert that decimal to a percent by multiplying by 100

17. anonymous

6.25

18. Vocaloid

right, so our final answer is 6.25%

19. anonymous

ok thanks