Question

Maria flips a dime four times. What is the probability that she will get at least two heads?

Answer 1

2/8 or 1/4

Answer 2

2/4 =1/2

Answer 3

2/4=1/2

Answer 4

I said 2/8 bc a coin has two sides qnd if you do it four times, that would be 8 and she gets two heads but im not sure since @lulu31302 and. @Jonathan101 both said 1/2

Answer 5

@Heypips

Answer 6

You flip 4 times but then you are calculating how many times it comes down heads. So flip and it lands on tales, flips lands on heads, flip lands on heads, flips lands on tails. Just did it, it is 2/4

Answer 7

don't know

Answer 8

but what would be the answer choice? @Jonathan101 @Heypips

Answer 9

I'm confused now

Answer 10

You could use the internet... Sorry @Jonathan101 confused me

Answer 11

same

Answer 12

11/16

Answer 13

@n33dhelp1 sorry

Answer 14

ok thanks

Answer 15

did the math it is 11/16

Answer 16

"There are 2^4 = 16 possible results given by 4 coin flips

There are (4 C 2) = 6 configurations with exactly 2 heads, (4 C 3) = 4 with exactly 3 heads and (4 C 4) = 1 with exactly 4 heads.

So probability (if coin is unbiased) is (6 + 4 + 1) / 16 = 11/16

(and probability that exactly 2 are heads is 3/8, not 1/2 as some people answer) "




https://answers.yahoo.com/question/index?qid=20100207134141AAvPpXQ

Answer 17

its ok @heypips