Mathematics: Consider the following table of the ages of our first six presidents ages of the first 6 presidents at inauguration washington 57 j. adams 61 jefferson 57 madison 57 monroe 58 jq adams 57 find the mean of the data set (57+61+57+57+58+57)/6 = 347/6 = 57.83 find the standard deviation (showing all work) how many of the presidentsí ages fall within one standard deviation of the mean?

Consider the following table of the ages of our - id2178350, hannahbeccahxo9681

Ответ:

emilyharper

01.01.2022

$m=57.83
\\ \sigma= \sqrt{ \frac{1}{N} \sum_{i=1}^{N}(x_i-m)^2 } =
\\= \sqrt{ \frac{(57-57.83)^2+(61-57.83)^2+(57-57.83)^2+(57-57.83)^2+(58-57.83)^2+(57-57.83)^2}{6} } 
\\= \sqrt{ \frac{4(-0.83)^2+3.17^2+0.17^2}{6} } \approx 1.46
\\
\\x=57.83 \pm 1.46
\\57.83-1.46 \leq x \leq 57.83+1.46
\\56.35 \leq x \leq 59.29$

Five presidents' ages fall within one standard deviation of the mean.

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Ответ:

sibr4566

08.06.2023

Mathematics

x = -20 X t-2 = C

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