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Andrews [41]
3 years ago
13

I think of a number and on adding 13 to it ,I get 40.Write the equation for it ?​

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
6 0

Answer:

x+13=40 and the answer to that is 27

m_a_m_a [10]3 years ago
5 0
X+13=40
so you do the reverse operations, so instead of adding you subtract
40-13=27
so x=27
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The upper limit of a 95% confidence interval for the population mean would equal 83.805.

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The standard deviation is the square root of the variance. Since the variance is 25, the sample's standard deviation is 5.

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The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

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