1) If you flip a coin five times, what is the probability that all five throws will turn up heads?
2) What is the probability of having three girls in a row?
3) If a couple had three girls in a row, what is the probability that the next child will be a girl?
2006-11-09 11:23:10 · 2 answers · asked by Anonymous in Education & Reference ➔ Homework Help
1) Answer = 0.03125
0.5 each time, so 0.5x0.5x0.5x0.5x0.5
2) Answer = 0.125
0.5 each time, so 0.5x0.5x0.5
3) Answer = 0.5
The result of the 4th doesnt depends on the previous 3.
2006-11-09 11:32:59 · answer #1 · answered by Dravos 2 · 0⤊ 0⤋
Should be 50/50 but have heard that there is a 52% chance that tails will come up because there is slightly more metal on that side.
(2) Must be 50/50 but I'm sure family history must play a part.
(3) Must be the same as (2).
2006-11-09 12:05:03 · answer #2 · answered by Ted T 5 · 0⤊ 0⤋