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Earn +20 ptsQ: What is the probability of 2 coins landing on heads?
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What is the probability of flipping three coins and all of them land up on heads?
The probability of the first coin landing heads is half (or 1/2). Similarly, the probability of the second and third coins landing heads are also 1/2 in each case. Therefore, the probability of having three heads is: (1/2)(1/2)(1/2) = (1/8)
What is the probability of flipping two coins and one landing on heads and one landing on tails?
It is 1/2.
Three fair coins are tossed determine the probability of the following event exactly two coins land on heads?
The sample space is 23 or 8; which can be listed out as: HHH, HHT, HTH, HTT, THH, THT, TTH, TTT. There are 2 of the 8 that have exactly 2 heads; so the probability of exactly two coins landing on heads is 2/8 or 1/4.
What is the probability of landing on heads 6 times?
The probability is 6 in 12, or 1 in 2.
Probability of two coins landing on tails?
the probabiluty of two coins landing on tails is 1/2 x 1/2 = 1/4, or one chance in four
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