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tia_tia [17]
3 years ago
5

What is the square root of (x^2 + 22)= 16

Mathematics
1 answer:
Soloha48 [4]3 years ago
8 0
Answer Square root is 6 :)
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According to the last census (2010), the mean number of people per household in the United States is LaTeX: \mu = 2.58 Assume a
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P(2.50 < Xbar < 2.66) = 0.046

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             Z = \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

So, probability that the sample mean household size is between 2.50 and 2.66 people = P(2.50 < Xbar < 2.66)

P(2.50 < Xbar < 2.66) = P(Xbar < 2.66) - P(Xbar \leq 2.50)

P(Xbar < 2.66) = P( \frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } } < \frac{2.66-2.78}{\frac{0.75}{\sqrt{110} } } ) = P(Z < -1.68) = 1 - P(Z  1.68)

                                                              = 1 - 0.95352 = 0.04648

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                                                              = 1 - 0.99996 = 0.00004  

Therefore, P(2.50 < Xbar < 2.66) = 0.04648 - 0.00004 = 0.046

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3 years ago
Please help me with this surds question.
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