Question

Max tossed a fair coin 3 times. What is the probability of getting heads in the first two trials and tails in the last trial?

4 over 8
3 over 8
2 over 8
1 over 8

Answer 1

3 0ver 8 (a)

because:

(h =heads)-(t=tails)

(hhh), (ttt), (hht), (hth), (thh), (htt), (tth), (tht)

the total number of options is 8 and 3 of them give you

1 head and 2 tails

so you take the 3 options and put it over 8 so 3/8 (A)

hope this helps

Answer 2

3 over 8 each flip has the same probability of head and tails (1/2) since there are only two sides. He flipped it three times which means there were 3 chances of the coin to land on either side.