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Summary: A coin is tossed 3 times. The probability of getting at least one head is 7/8.(iii) Let E3 denotes the event of getting atleast one head. Hence the required probability is 7/8.Answer: If you flip a coin 3 times the probability of getting 3 heads is 0.125. When you flip a coin 3 times, then all the possibe 8 outcomes are HHH, THH, HTH, HHT, TTH, THT, HTT, TTT. Explanation: Possible outcomes are HHH, THH, HTH, HHT, TTH, THT, HTT, TTT.
When 3 coins are tossed what is the probability of getting at least one head?
(iii) Let E3 denotes the event of getting atleast one head. Hence the required probability is 7/8.
What is the probability of getting a head when a coin is tossed 3 times?
Answer: If you flip a coin 3 times the probability of getting 3 heads is 0.125. When you flip a coin 3 times, then all the possibe 8 outcomes are HHH, THH, HTH, HHT, TTH, THT, HTT, TTT. Explanation: Possible outcomes are HHH, THH, HTH, HHT, TTH, THT, HTT, TTT.
Coin flipping probability | Probability and Statistics | Khan Academy
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What is the meaning of at least one head?
At least one head means the number of head is greater than or equal to 1. For example:- Three coins are tossed together.
Probability Tossing Three Coins Tree Diagram At Least 2 Heads
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What is the probability of obtaining heads at least once?
You state flipping a coin “two times”, in which case, there are four possible outcomes: TT, TH, HT, HH, with probability 3/4 that a head will appear at least once.
When a coin is tossed 3 times find the probability of getting exactly one tail?
So you have a 7/8 chance that you will have at least one tails.
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At Least One… – NRICH
If you flip a coin 3 times the probability of getting at least one heads is 7 in 8 by reading the table. This table also works the opposite way, the chances …
Probability of Getting 1 Head in 3 Coin Tosses – getcalc.com
0.88 is the probability of getting 1 Head in 3 tosses. Exactly 1 head in 3 Coin Flips. The ratio of successful events A = 3 to total number …
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= 3 (as HH, HT, TH are having at least one head). So, by definition, P(F) = 34 …
How many outcomes have at least one head?
N=1: There are 4 possible outcomes which will have only one coin heads. It may be that the 1st coin is heads, and all others are tails; or it may be that the 2nd coin is heads, and all others are tails; or it may be that the 3rd (or the 4th) coin is heads, and all others are tails.
When two coins are tossed what is the probability of at least one head?
Expert-verified answer
Probability of getting at least 1 head. Let E be event of getting at least 1 head. Then, E = {(HH , HT, TH} Therefore, n(E) = 3. Therefore, P(getting at least 1 head) = P(E) = n(E)/n(S) = 3/4.
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