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allenpaietonp9v8sv
01.10.2019 •
Mathematics
What is the probability that when a fair coin is flipped 25 times, there will be exactly five heads? a. 0.00158 b. 53130 c. 1660.3 d. 0.1900
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Ответ:
Option 'A' is correct.
Step-by-step explanation:
Since we have given that
Number of times the coin is flipped = 25 times
Probability of getting head in each time =![\frac{1}{2}](/tpl/images/0280/8950/9cdae.png)
Probability of not getting head in each turn =![1-\frac{1}{2}=\frac{1}{2}](/tpl/images/0280/8950/e7b08.png)
So, by using "Binomial distribution", here n = 25 and
We need exactly 5 heads .
so, it will be written as
Hence, Option 'A' is correct.
Ответ:
(5r^2 + 36)=
(25r+ 36)