SOLUTION: In toasting three fair coins at once. what is the probability of getting
1. at most two heads
2. at least one head
3. more heads than tails
4. no head
5. exactly two heads
Algebra.Com
Question 344014: In toasting three fair coins at once. what is the probability of getting
1. at most two heads
2. at least one head
3. more heads than tails
4. no head
5. exactly two heads
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Look at all of totality of outcomes.
There are or of them.
1.H H H
2.H H T
3.H T H
4.H T T
5.T H H
6.T H T
7.T T H
8.T T T
Now that you have all of the outcomes, you can answer all of your questions.
1. "at most two heads"-Means 2 H or less.
Count the number of outcomes that have 2 H or less.
There are 7 possible outcomes(2,3,4,5,6,7,8).
The probability is possible outcomes divided by total outcomes.
.
.
.
2. At least 1 H- Again there are 7 of them (1,2,3,4,5,6,7)
.
.
.
Now complete the remaining questions in a similar way.
RELATED QUESTIONS
Three coins are tossed.what is the probability of getting(a)all heads,(b)two heads,(c)at... (answered by natolino_2017)
In tossing three coins at a time, the probability of getting at most one head is:
(answered by Fombitz)
Find exact probabilities showing all required computation.
Five fair coins are tossed.... (answered by reviewermath)
If a fair coin is tossed 3 times, what is the probability of getting at least 2 heads (at (answered by stanbon)
Three unbiased coins are tossed. What is the probability of getting at most two... (answered by Fombitz)
Toss a 4 coins 15 times and write your outcomes, what will be the probability of getting
(answered by ewatrrr)
Four fair coins are tossed at once. The probability of getting at least three heads is
(answered by ikleyn)
if two coins and a die are thrown at once,what is the probability of getting two heads... (answered by ikleyn)
if two coins and a die are thrown at once,what is the probability of getting two heads... (answered by ikleyn)