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Robert tossed a fair coin 3 times. What is the probability that the co 27 Dec 2015, 09:04
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C
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Robert tossed a fair coin 3 times. What is the probability that the coin landed heads up exactly twice?

A. 0.125
B. 0.250
C. 0.375
D. 0.750
E. 0.875
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C
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Robert tossed a fair coin 3 times. What is the probability that the co 30 Dec 2015, 04:51
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Total outcomes = HHH HHT HTT HTH TTT TTH THT THH
required = HHT HTH THH
probability =3/8=0.375
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Robert tossed a fair coin 3 times. What is the probability that the co 30 Dec 2015, 04:57
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Total number of outcomes = 2 * 2 * 2 = 8
Out of 3 times we need heads exactly 2 times = 3C2 = 3

Probability = 3/8 = 0.375
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Robert tossed a fair coin 3 times. What is the probability that the co 30 Dec 2015, 05:49
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Forget conventional ways of solving math questions. In PS, IVY approach is the easiest and quickest way to find the answer.

Robert tossed a fair coin 3 times. What is the probability that the coin landed heads up exactly twice?

A. 0.125
B. 0.250
C. 0.375
D. 0.750
E. 0.875



The probability is exactly same as the cion landed tail up once. That is 3*(1/2)^3 = 3/8 =0.375.


The answer is, therefore, (C).
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Robert tossed a fair coin 3 times. What is the probability that the co 02 Apr 2016, 05:49
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possible outcomes after tossing a fair coin 3 times:
HHH
HHT
HTH
HTT
THH
THT
TTH
TTT

out of that only 3 favourable cases are required
probability = 3/8 = 0.375
Answer - C
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Robert tossed a fair coin 3 times. What is the probability that the co 04 Oct 2022, 22:07
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Given that Robert tossed a fair coin 3 times and we need to find What is the probability that the coin landed heads up exactly twice?

Coin is tossed 3 times => Total number of cases = \(2^3\) = 8

To find the cases in which the coin lands on heads exactly twice we need to select two places out of three _ _ _ in which we will get Heads.

This can be done in 3C2 ways = \(\frac{3!}{2!*(3-2)!}\) = \(\frac{3*2!}{2!*1!}\) = 3 ways

=> P(2H) = \(\frac{3}{8}\) = 0.375

So, Answer will be C
Hope it helps!

Watch the following video to learn How to Solve Probability with Coin Toss Problems

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Robert tossed a fair coin 3 times. What is the probability that the co 06 Jul 2025, 15:26
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