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attashe74 [19]
2 years ago
9

Do,k = (9,6) --> (3,2) The scale factor is? 1/3 3 6

Mathematics
1 answer:
kirza4 [7]2 years ago
6 0

Answer:

the answer is 1/3

Step-by-step explanation:

If you dilate (3,2) by 3 it will come out a (9,6). Therefore, the scale factor is 1/3

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A statistician uses Chebyshev's Theorem to estimate that at least 15 % of a population lies between the values 9 and 20. Use thi
rjkz [21]

Answer:

\mu = 14.5\\

\sigma = 5.071\\

k = 1.084

Step-by-step explanation:

given that a  statistician uses Chebyshev's Theorem to estimate that at least 15 % of a population lies between the values 9 and 20.

i.e. his findings with respect to probability are

P(9

Recall Chebyshev's inequality that

P(|X-\mu |\geq k\sigma )\leq {\frac {1}{k^{2}}}\\P(|X-\mu |\leq k\sigma )\geq 1-{\frac {1}{k^{2}}}\\

Comparing with the Ii equation which is appropriate here we find that

\mu =14.5

Next what we find is

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Thus from the given information we find that

\mu = 14.5\\\sigma = 5.071\\k = 1.084

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3 years ago
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