afoakwacosmos
27.01.2020 •
Mathematics
What is the probability of only 2 answers being false, in a 4-question t/f quiz?
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Ответ:
After my thorough researching, the probability of only two answers being false, in a 4-question T/F quiz is 1/2 or .5. Then, the correct answer to the following given statement or question stated above is the probability of 1/2 or 0.5.
Ответ:
The empirical rule states that at 95% the measurements would be within 2 standard deviations of the mean.
You are given a mean of 68 inches and a standard deviation of 4.
2 times the standard deviation = 2 x 4 = 8
So 95% of the heights would be between 68-8 = 60 inches and 68+8 = 76 inches.