-25 is less than 16 because it’s a negative number
Out of 90 reservation made, 77 diners are expected to show up. And the standard deviation of this binomial distribution is 3.39
We have been given that
Percentage of people who make reservation and didn’t show up = 15% = 0.15
Number of reservation made = 90
Now we have to calculate number of people expected to show up that is we have to calculate mean. As this a binomial distribution in which we have been given
n = 90 and q = 0.15
Thus, µ = np = 90*(1-0.15) = 90*0.85
µ = 76.5 ≈ 77
Thus it is expected to have 77 diners to show up.
Now standard deviation is given as:
σ = √npq
σ = √90*0.15*0.85
σ = 3.39
Hence the standard deviation is 3.39
Learn more about binomial distribution here : brainly.com/question/25992005
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Answer: 252
Step-by-step explanation:
You just multiply 84 by two and then ad another 84.
Use Pythagoras 6 squared =36-(4x4) =20 square root of 20 then times that by two
Take
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Integrate by parts, setting
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, which give
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. Then
which in terms of
is
where the last term uses the property that
, and the
term is absorbed into
.