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GuDViN [60]
3 years ago
14

What is 3,989.23655 rounded to the nearest one thousandth?

Mathematics
1 answer:
Xelga [282]3 years ago
8 0
The 6 is in the thousandth place so you round with that being the last number
since we have a 55 after the 6, we round up
so we get
3,989.237
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If LK=MK, LK=7x-10,KN=x+3, MN=9x-11 and KJ=28 find LJ
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Suppose J, K, L, M, N are points on the same line.

MK = MN + (-KN) = MN - KN = 9x - 11 - x - 3 = 8x - 14

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7x - 10 = 8x - 14

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For males in a certain town, the systolic blood pressure is normally distributed with a mean of 130 and a standard deviation of
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A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to fin
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Answer: (24.28,\ 27.72)

Step-by-step explanation:

Given : Sample size : n=50

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Critical value : z_{\alpha/2}=1.96

Formula to find the confidence interval for population mean :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=26\pm(1.96)\dfrac{6.2}{\sqrt{50}}\\\\\approx26\pm1.72\\\\=(26-1.72,\ 26+1.72)\\\\=(24.28,\ 27.72)

Hence, a 95% confidence interval for the population mean = (24.28,\ 27.72)

6 0
3 years ago
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