3 years ago

The graph shows the rate at which the depth of the water in a pond is changing over time.

Mathematics

1 answer:

Anvisha [2.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

Because if it’s 4 feet 2 minutes then you divide 2divided by 2 which is 1 and 4 divided by 2 which is 2. I Also got it right on edgunity

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The sample size must be approximately 1067 to get a margin of error of 0.03.

Step-by-step explanation:

We are given the following in the question:

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Margin of error =

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Putting values, we get,

$0.03 = 1.96\sqrt{\dfrac{0.5(1-0.5)}{n}}\\\\\sqrt{n} = \dfrac{1.96\times 0.5}{0.03}\\\\\\sqrt{n} = 32.67\\n = 1067.3289\approx 1067$

Thus, the sample size must be approximately 1067 to get a margin of error of 0.03.

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Step-by-step explanation:

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