SOLUTION: A fair coin is tossed 5 times. What is the probability of obtaining exactly 3 heads? How do I work this out in steps?
Algebra ->
Probability-and-statistics
-> SOLUTION: A fair coin is tossed 5 times. What is the probability of obtaining exactly 3 heads? How do I work this out in steps?
Log On
Question 155523: A fair coin is tossed 5 times. What is the probability of obtaining exactly 3 heads? How do I work this out in steps? Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! You could make a table with all possible outcomes thus:
THERE ARE 32 POSSIBLE OUTCOMES (2^5=32).
EXACTLY 3 HEADS ARE 10 OUT OF 32 [AS SHOWN BELOW] 0R 10/32=31.25% OF THE TIME.
H H H T T
H H T H T
H T H H T
T H H H T
H H T T H
H T T H H
T H T H H
T T H H H
T H H T H
H T H T H
(