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2 years ago

Please help I will give brainliest for honest answers

Mathematics

1 answer:

Vaselesa [24]2 years ago

3 0

Answer:

$408

Step-by-step explanation:

subtract 30 from 540 to get 510

then divide 510 by 5 or divide 510 by 100 then multiply by 20

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510 divided by 5 is 102

510 divided by 100 is 5.1 which then you multiply by 20 to get 102

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102 is equal to 20% of 510 so you subtract 510 by 102 to get 408

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Answer:

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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$n = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2$

A sample of $n = (\frac{1.96\sqrt{0.3696*0.6304}}{E})^2$ is needed, in which E is the desired margin of error, as a proportion. If we find a decimal value, we round up to the next whole number.

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