Question

A fair coin is tossed 3 times in a row. What is the probability that heads appears on only the last toss?

Answer 1

@Kitten_is_back

Answer 2

@YoungStudier

Answer 3

#medal given

Answer 4

okay

Answer 5

soooo..... what is the answer?

Answer 6

holf on

Answer 7

@ajo21

Answer 8

@Error1603

Answer 9

1/8 is the answer

Answer 10

Your right but how did you get it?

Answer 11

P(2 heads) = 3/8 = 1/4 = 0.375 = 37.5% (HHT, HTH, THH)
P(at least 2 heads) = P(2 heads) + P(3 heads) = 3/8 + 1/8 = 4/8 = 0.5 = 50%
P(at least 1 head) = P(1H) + P(2H) + P(3H) = 3/8 + 3/8 + 1/8 = 7/8 = 0.875 = 87.5%
P(1 head) = 3/8 = 0.375 = 37.5% (HTT, THT, TTH)
P(1 head on last toss) = 1/8 = 0.125 = 12.5% (TTH) @klc097

Answer 12

just poped up in m u hwad