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arsen [322]
2 years ago
8

6 1/3 - 4 1/9 I need help again

Mathematics
2 answers:
vitfil [10]2 years ago
7 0

Answer:

<em><u> 2.222</u></em>

Step-by-step explanation:

<em>Hope this helps :)  </em>

<em>Pls make brainliest :3  </em>

<em>And have an amazing day <3</em>

wolverine [178]2 years ago
3 0

Answer:

2 2/9

Step-by-step explanation:

so if we want to be able to substract, we're gonna multiply the 1/3 times three so the result come out to 3/9 and now we are able to substract, so 6 3/9 - 4 1/9 is equal to 2 2/9

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Answer:

(0.9464,1.034)

Step-by-step explanation:

First find the mean μ  of all values as;

(0.95+1.02+ 1.01+ 0.98 ) /4 =0.99

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Find the standard deviation as;

-For each value subtract the mean and square the results

0.95-0.99 = -0.04 , -0.04² = 0.0016

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1.01-0.99= 0.02, 0.02²= 0.0004

0.98-0.99 = -0.01, -0.01²=0.0001

Find mean of squared deviations as;

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Standard deviation = √0.00075 = 0.0274

δ = 0.0274

n=4

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Degree of freedom (df) = n-1 =4-1 =3

The t value for 95% confidence with df= 3 is t=3.182

Substituting the values in equation (i)

0.99 ± 3.182 * 0.0274/√4

0.99 ± 3.182 * 0.0274/2

0.99 ± 3.182 * 0.0137

0.99 ± 0.0436

(0.9464,1.034)

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