3 years ago

What is a reasonable metric unit for the capacity of a large lake

Mathematics

1 answer:

Marrrta [24]3 years ago

7 0

Answer:

Liters and milliliters are metric units for measuring capacity

Step-by-step explanation:

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Answer:

95% confidence interval: (0.325 ,0.383)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 231

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Sample standard deviation = 0.231 ppm

95% confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 4 and}~\alpha_{0.01} = \pm 1.97$

$0.354 \pm 1.97(\dfrac{0.231}{\sqrt{231}} ) = 0.354 \pm 0.029 = (0.325 ,0.383)$

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Step-by-step explanation:

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Step-by-step explanation:

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Laura ordered a set of blue and black pencils. She received 110 pencils,21% of then were black. About how many blue pencils did

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x 21
----- = -----
110 100

Cross multiplication:
110 x 21 / 100

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About 23 of the pencils are blue.

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4 years ago