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hdjsjfjruejchhehd
07.04.2021 •
Mathematics
1. The values, x in a sample of 15 are summarized as follows
Σ(x-c) = 72,Σ(x-c)2 = 499.6
where c is a constant. Given that the sample mean is 104.8.
(a) Find the value of constant c.
(b) Find the variance of x.
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Ответ:
520??
Step-by-step explanation:
600-80=520??
educated guess.