SOLUTION: Probability If you toss seven fair coins, in how many ways can you obtain each result? at least 2 heads ("At least two" is the complement "of zero or one")

Question 843622: Probability
If you toss seven fair coins, in how many ways can you obtain each result?
at least 2 heads ("At least two" is the complement "of zero or one")

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
There are or 128 possible outcomes.
One of them has zero heads.
TTTTTTT
Seven of them have one head.
TTTTTTH
TTTTTHT
TTTTHTT
TTTHTTT
TTHTTTT
THTTTTT
HTTTTTT
So then the probability of "at least 2 heads" is,

RELATED QUESTIONS
The probability of obtaining at least two heads in a toss of a fair die trice... (answered by Fombitz)

In how many ways could you obtain at least one head if you flip the coin seven times? (answered by jim_thompson5910)

You toss 3 coins. What is the probability that you get exactly 2 heads, given that you... (answered by stanbon)

How can you make a fair game (one with probability 1/2 of winning) from tossing an unfair (answered by edjones,richard1234)

In toasting three fair coins at once. what is the probability of getting 1. at most two... (answered by Fombitz)

Two dice are thrown. Determine the number of ways to obtain a score of at least 4. Hint (answered by fractalier)

If I were to toss 5 fair coins, how many ways can I have 1 heads and 4... (answered by ikleyn)

suppose we toss a fair coin eight times.determine the following probabilities for a... (answered by stanbon)

Three fair coins are tossed. What is the probability that at least two are heads?... (answered by Fombitz)