SOLUTION: What is the probability of getting 2 heads if a coin is tossed 3 times?
Algebra.Com
Question 187399: What is the probability of getting 2 heads if a coin is tossed 3 times?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
What is the probability of getting 2 heads if a coin is tossed 3 times?
-----------------
It's a binomial problem with n=3, p = 1/2 , x = 2
P(x=2) = 3C2(1/2)^2(1/2)^1 = 3(1/2)^3 = 3/8
------------------------------------------------
Cheers,
Stan H.
RELATED QUESTIONS
If a fair coin is tossed 3 times, what is the probability of getting at least 2 heads (at (answered by stanbon)
suppose a coin is tossed three times. what is the probability getting 2... (answered by josmiceli)
A weighted coin is tossed four times. The probability for the number if heads observed is (answered by stanbon)
A weighted coin is tossed four times. The probability for the number if heads observed is (answered by stanbon)
a coin is tossed 9 times what is the probability of getting ?
a)five heads
b)at least... (answered by rothauserc)
what is the probability of obtaining either 2 heads or 4 heads if a fair coin is tossed 5 (answered by stanbon)
a fair coin is tossed 3 times,
1. what's the probability of getting two heads?
2.... (answered by richwmiller,Edwin McCravy)
A coin is biased so that a head is twice as likely to occur as a tail. If the coin is... (answered by reviewermath)
A balanced coin is tossed 8 times. What is the probability of getting exactly 2 heads... (answered by edjones)