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Toss a fair coin 10 times. If you know that at least 7 heads are tossed, what is the probability that your first toss is heads?
Knowing the results in advance, there is a 7/10 chance that the first toss is heads.
In this case "seven out of ten" is quite literal. The first toss is one of the 10, and 7 of them came up heads, so 7/10 is the chance that this particular one is one of the heads.
What else can I help you with?
When a coin is tossed 10 times in a row what is the probability that heads comes up at least 7 times?
7/10
What is the probability that at least one coin will be tails?
The answer depends on how many coins were tossed.
A coin is tossed 10 times. What is the probability of getting at least one head?
Assuming that it is a fair coin, the probability is 0.9990
What is probability of getting at least 2 heads out of 5 tosses?
To find the probability of getting at least 2 heads in 5 tosses of a fair coin, we can use the binomial probability formula. First, we calculate the probabilities of getting 0 and 1 head, then subtract these from 1. The probability of getting at least 2 heads is 1 minus the sum of the probabilities of getting 0 heads (1/32) and 1 head (5/32). Thus, the probability of getting at least 2 heads is (1 - (1/32 + 5/32) = 26/32 = 13/16) or 0.8125.
You toss 3 coins what is the probability that at least 1 tail is tossed?
1/6
What is the probability of tossing at least three heads if a fair coin is tossed four times?
It is 0.3125
When a coin is tossed 7 times in a row what is the probability that heads comes up at least 4 times?
1/2
When a coin is tossed 10 times in a row what is the probability that heads comes up at least 7 times?
7/10
If a coin is tossed 5 times what is the probability it will land on heads?
There is a 50% chance that it will land on heads each toss. You need to clarify the question: do you mean what is the probability that it will land on heads at least once, exactly once, all five times?
A fair coin is tossed 9 times What is the probability that At least two heads appear?
well, it will have 6 times of the greater chance.
Fair coin is tossed 11 times What is the probability that a Exactly 9 heads appear b At least two heads appear c At most 8 heads appear?
Prob(Exactly 9 Heads) = 0.0269 Prob(At least 2 Heads) = 0.0327 Prob(At most 8 Heads) = 0.9673
A coin tossed 5 independent times.what is the probability of getting atleast 4 heads?
Prob(at least 4 heads) = Prob(4 heads) + Prob(5 heads) = 5/32 + 1/32 = 6/32 = 3/16
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 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 that at least one coin will be tails?
The answer depends on how many coins were tossed.
What is the probability of getting at least one head if 2 quarters were tossed?
It is 0.75
A coin is tossed 10 times. What is the probability of getting at least one head?
Assuming that it is a fair coin, the probability is 0.9990
