If a coin is flipped three (3) times, what is the probability that it will land tails up exactly twice?

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2007-04-03 15:16:51 · 3 answers · asked by need_help44 1 in Education & Reference ➔ Homework Help

Three flip two possiblitity, 2x2x2 or 2^3 or 8 outcomes:
hhh
hhT
hTh
hTT * twice
TTT * three times
TTh * twice
ThT * twice
Thh

so 3 of 8 times

2007-04-04 05:50:10 · answer #1 · answered by jon_mac_usa_007 7 · 0⤊ 0⤋

1/2

2007-04-03 22:19:50 · answer #2 · answered by Bryan 3 · 0⤊ 0⤋

1/1

2007-04-04 04:29:46 · answer #3 · answered by need help 911 1 · 0⤊ 0⤋