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3 years ago

7

A car is traveling at a constant velocity. After two hours the car has traveled 110 miles. After four hours the car has traveled

220 miles. Assuming a linear equation fits this situation, find the distance that the car will travel after five hours.

1 answer:

Aleks04 [339]3 years ago

8 0

I will take110+110 which will give me220

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2 years ago

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shusha [124]

Answer:

You must survey 784 air passengers.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

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Assume that nothing is known about the percentage of passengers who prefer aisle seats.

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Within 3.5 percentage points of the true population percentage.

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$(\sqrt{n})^2 = (\frac{1.96*0.5}{0.035})^2$

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2 years ago