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antoniya [11.8K]
3 years ago
11

Write each power as a product of factors 2^4 4^2 9^2 8^5 5^3 7^3

Mathematics
1 answer:
snow_lady [41]3 years ago
5 0
<em><u>2^{4}⇒2×2×2×2⇒16</u></em>
<em><u>4^{2}⇒4×4⇒16</u></em>
<em><u>9^{2}⇒9×9⇒81</u></em>
<em><u>8^{5}⇒8×8×8×8×8⇒32.768</u></em>
<em><u>5^{3}⇒5×5×5⇒125</u></em>
<em><u>7^{3}⇒7×7×7⇒343</u></em>
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Answer:

a) No 95% of values will fall between (24;64); 68,27% will fall between (34;54)

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Step-by-step explanation:

Empirical rule establishes, for a  normal distribution with mean μ and σ as standard deviation:

In interval   μ  ±  σ    or   ( μ  +  σ ;  μ  -  σ) we should find 68.27 % of all values of the population, and by simmetry 68.27/2 = 34,14 % should be over the mean and the other half would  be values below the mean

Therefore in our case

μ  +  σ  =  44 + 10  =  54

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μ  -  σ  = 44 - 10   = 34

a) Then  68,34 % of values will fall in this interval

We know now that value 34 is 1* σ   below the mean, and is at the limit of 34,14 %

b) μ  +  2*σ  =   44 * 2*10  =  44 + 20  =  64

64 is the upper limit for the interval   μ  +  2*σ  and we know that 95.45 % of all values will fall between (  μ  -  2*σ  ;  μ  +  2*σ ) and by simmetry just one side of this interval (the right side ) will have 95.45/2 = 47;73 %

Then in interval going from ( 34 ; 64 ) we shoud find 47.73 + 34,14

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Step-by-step explanation:

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Answer:

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