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The probability of tossing two coins one time and not getting two heads is 3/4 or 75%. The possible out comes of this are: HH, HT, TH, TT. There is only one way to get two heads, out of four possible results. Another, faster way to do this problem would be to multiply the probability of getting one head on one coin (1/2) by the probability of getting a head on another coin (also 1/2). This will result in 1/4. Because you want every result BUT this one, subract this answer from one. You will get the an answer of 3/4. This may not seem like a faster method when writing it out, but with a larger number of coins it would save a lot of time, because you do not have to go through all of the combinations.
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Four coins tossed what is the probability of tossing all heads?
If they are fair coins, it is 1/16.
What is the probability of NOT tossing two heads with two fair coins?
It is 3/4 or 0.75
What is the probability of of tossing heads on the first 6 tosses of a fair coin?
The probability of tossing heads on all of the first six tosses of a fair coin is 0.56, or 0.015625. The probability of tossing heads on at least one of the first six tosses of a fair coin is 1 - 0.56, or 0.984375.
What is the probability of not tossing three heads with three fair coins?
The probability of something NOT happening is the complement of the probability of something happening. Since the probability that you DO have 3 heads is 1/8 (that is, 1/2 cubed), the complement is 1 - 1/8 = 7/8.
What is the probability of tossing heads with one toss of a fair coin?
50:50, or 50%
What is the probability of tossing heads on the first 4 tosses of a fair coin?
1/16
What is the probability of tossing at least three heads if a fair coin is tossed four times?
It is 0.3125
When tossing 3 fair coins what are the chances of getting 2 heads?
It is 3/8
Possible outcomes of tossing a coin?
Heads or tails; each have a probability of 0.5 (assuming a fair coin).
What is the probability of you getting three heads straight for tossing a fair coin three times?
It is 1/8 = 0.125
What is the probability of tossing four coins and getting tails on all four?
Assuming it is a fair coin, the probability is 1/24 = 1/16.
What is the probability of tossing a coin and landing on heads and rolling 5 on a single fair 6 sided dice?
the probability of tossing a coin and it landing on head is a 1 in 2 chance the probability of rolling a 5 on a dice is a 1 in 6 chance
