Question

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

Answer 1

Do u got sum answer options?

Answer 2

1/2
1/512
1/1022
1/1024
1/2048

Answer 3

let's just consider one coin

the probability of *one* coin getting heads is 1/2
the probability of *two* coins getting heads is (1/2) * (1/2)
and so on. so for 10 coins getting heads, simply multiply (1/2) ten times in a row

same logic for all tails

then, since it says "all heads" OR "all tails", add the two probabilities together