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A coin is tossed until a head appears. what is the expectation of number of tosses required?
Wiki User
∙ 13y ago
Usually, it takes 2-5 flips until a head appears.
Wiki User
∙ 13y ago
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A number cube labeled 1-6 was tossed. What are the odds for the cube showing a number less than 3?
2/6=1/3
Suppose you toss a fair coin 75 times how many times would you expect to get heads?
A fair coin means that the probability of a head = probability of a tail = 1/2 So you would expect half the tosses to be heads, ie 1/2 x 75 = 371/2 heads. ...oooOOOooo... Having 1/2 a head doesn't seem possible, but when the question asks about expectation, it is saying: if you repeated the experiment lots of times, how often, on average, would the required result appear. So the expectation of heads when a fair coin is tossed 75 times is asking: if a fair coin was repeatedly tossed 75 times, what would be the (mean) average number of heads achieved? As more and more trials are done and the (mean) average of the number of heads got is taken, it will get closer and closer to 371/2 37 or 38 times. (Obviously, you can't have half of a time.) You will either get one or the other, and a fair coin means that either is just as likely. So, it should split evenly down the middle.
A die is tossed. Find the odds against rolling a number greater than 1.?
The probability of rolling a number greater than 1 is 5/6.
A fair coin is tossed 10 times what are the expected mean and variance of the number of heads?
mean = 5, variance = 5
Suppose three coins are tossed what is the probability of tossing more than one tail?
n(S)=8 let A be the event that more than one tail appears n(A)=4 so,P(A)=4\8=0.5
How would you describe the revolutions affected theater?
A coin is tossed until ahead appears. What is the expectation of the number of tosses required?
Three dice are tossed what is the probability that the same number appears on exactly two of the three dice?
The probability is 90/216 = 5/12
How many different combinations are possible is a coin is tossed once and a number cube is tossed twice?
The number of combinations - not to be confused with the number of permutations - is 2*21 = 42.
How many different combinations are possible if a number cube is tossed once and a coin is tossed twice?
7878
How many different combinations are possible if number cube is tossed once and a coin is tossed three times?
48
How many different combinations are possible if a coin is tossed once and a number cube is tossed twice?
There are 72 permutations of two dice and one coin.
A coin is tossed If it comes out heads a die is then tossed once if a tail appears the coin is tossed one more time List the possibilities as to how many outcomes are possible?
The answer in the back of the book says that it is: TT, TH, H1, H2 H3, H4, H5, H6= 8 possibilities. But I don't understand what that means or how the answer was found. Help?
If coin is tossed seven times what is the number of sequences of heads or tails?
The number of sequences is 27 or 128.
What is the suffix of tossed?
tossed
What is a homophone for tossed?
Tossed - Toased
What is the probability that at least one tail appears when tossed 6 times?
you have 63 chances out of 64. i once witnessed a coin being tossed seven times and giving up 7 consecutive heads. we never tried it an eighth time, 7 heads and you had to go to the bar.
What is suffix for tossed?
The suffix for tossed is ed
