Question

If a coin is flipped 10 times, what is the probability that it will show all heads or all tails?

1/2

1/512

1/1,022

1/1,024

1/2,048

Answer 1

HI!!

Answer 2

1/2 on everyone chance. But there are 10 chances to get only heads or only tails. So multiply 1/2 by itself 10 times.

Answer 3

or (1/2)^10

Answer 4

the denominator should be \(2^{10}\) for each
all heads \(\frac{1}{2^{10}}\) all tails \(\frac{1}{2^{10}}\) add and get \[\frac{2}{2^{10}}=\frac{1}{2^9}\]

Answer 5

I got a crazy decimal.

Answer 6

lol look at your answer choices
see any decimals?

Answer 7

because its a really small fraction

Answer 8

compute \(2^9\) put that in the denominator

Answer 9

Ohh so it's c?

Answer 10

usually is C

Answer 11

xD Thank you :)

Answer 12

but not this time!!

Answer 13

But i just checked it.

Answer 14

\[2^{10}=1024\] but you want
\[2^9\]

Answer 15

all heads OR all tails
two choices

Answer 16

oh, so what do I do? 2^9?

Answer 17

@misty1212 ?

Answer 18

I think she is saying put 2^9 as the denominator.

Answer 19

Okay, so when I did 2^9 in my calculator, i got 512, so would the answer be 1/512?

Answer 20

Yes

Answer 21

Okay thank you :)

Answer 22

No problem