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Ivan
3 years ago
9

Three hours ahead of ten forty in the morning

Mathematics
2 answers:
VashaNatasha [74]3 years ago
6 0
It's one forty PM in the afternoon (just look at a clock)
Maurinko [17]3 years ago
5 0
10 + 3 = 13
13-12 (noon) = 1
3 hours ahead of 10:40 in the morning is 1:40 in the afternoon. (13:40 in military)
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Jeff provides photos for two online sites: site A and site B.
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Read 2 more answers
The mean per capita income is 15,451 dollars per annum with a variance of 298,116. What is the probability that the sample mean
docker41 [41]

Answer: 0.5467

Step-by-step explanation:

Let X be the random variable that represents the income (in dollars) of a randomly selected person.

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\sigma^2=298116\\\\\Rightarrow\ \sigma=\sqrt{298116}=546

Sample size : n=350

z-score : \dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}

To find the probability that the sample mean would differ from the true mean by less than 22 dollars, the interval will be

\mu-22,\ \mu+22\\\\=15,451 -22,\ 15,451 +22\\\\=15429,\ 15473

For x=15429

z=\dfrac{15429-15451}{\dfrac{546}{\sqrt{350}}}\approx-0.75

For x=15473

z=\dfrac{15473-15451}{\dfrac{546}{\sqrt{350}}}\approx0.75

The required probability :-

P(15429

Hence, the required probability is 0.5467.

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3 years ago
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39 x 73 - use a calculator or something if you need the answer for it.
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