Round 2 5/6 to the nearest half

Mathematics

2 answers:

Mekhanik [1.2K]3 years ago

7 0

(2 5/6):2 = (2 5/6) * 1/2 = (12/6 + 5/6)*1/2 = 17/6*1/2 = 17/12 = 1 5/12

umka21 [38]3 years ago

6 0

To round 2 5/6 to the nearest half, think about it like this:
Is 2 5/6 closer to 2 1/2, or 3?

2 3/6 is equal to 2 1/2.

Because 2 5/6 is closer to 3 then to 2 3/6, you would round 2 5/6 to 3.

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Given:
250 sheep in a 40-acre pasture.
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sample proportion: signified by ρ
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Sample 2: 1 → 1/6 = 0.17
Sample 3: 9 → 9/6 = 1.50

multiply the sample proportion by 1-ρ
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Sample 2: 0.17(1-0.17) = 0.17(0.83) = 0.1411
Sample 3: 1.50(1-1.5) = 1.5(-0.5) = -0.75

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Sample 2: 0.1411/6 = 0.02352
Sample 3: -0.75/6 = -0.125

square root of the quotient to get the standard error.
Sample 1: √0.03685 = 0.1919
Sample 2: √0.02352 = 0.1534
Sample 3: √-0.125 = invalid

z value 95% confidence 1.96.

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