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miranda3837
14.07.2020 •
Mathematics
An experiment consists of tossing 3 coins at the same time. What is the probability of tossing 2 tails and 1 head?
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Ответ:
3/8.
Step-by-step explanation:
The probability of a head or a tail on one toss of a single coin is 1/2.
So the required probability when 3 coins are tossed of getting say 3 heads = (1/2)*3 = 1/8.
The probabilities are multiplied because each event ( 1 coin tossed) is independent of the others.
There are 3 ways to get 2 H and 1 tail (HHT, HTH and THH) so the answer is 3 * 1/8
= 3/8.
Ответ:
3/8 or 0.375 or 37.5%
Step-by-step explanation:
You have three coins. The probability of getting a head or a tail for each coin is 1/2. So,
There are 8 possible combinations that can come from tossing 3 coins at the same time: HHH, HHT, HTH, HTT, THH, THT , TTH , or TTT.
Every time you toss the 3 coins, there is a
chance that you get either of these combinations. So,
The probability of tossing 2 tails and 1 head is 3/8.
Hope this helps.
Ответ: