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Cerrena [4.2K]
3 years ago
8

Hamburger sells for 3 pounds $6. If Samantha buys 10 pounds of hamburger, how much will she pay?

Mathematics
2 answers:
alexira [117]3 years ago
8 0

Answer:

too d.a.m.n much.

Step-by-step explanation:

divide 6 by 3 and multiply that answer by 10

Harman [31]3 years ago
7 0

soln,

3 pounds = $ 6

1 pound = $6/3 = $ 2

now,

10 pounds = $ 2 x 10

= $ 20

therefore, 10 pounds of hamburger costs $ 20.

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Answer:

A sample of 1077 is required.

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}}

In which

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98% confidence level

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How large of a sample size is required?

A sample size of n is required, and n is found when M = 0.035. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.035 = 2.327\sqrt{\frac{0.42*0.58}{n}}

0.035\sqrt{n} = 2.327\sqrt{0.42*0.58}

\sqrt{n} = \frac{2.327\sqrt{0.42*0.58}}{0.035}

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Rounding up:

A sample of 1077 is required.

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Step-by-step explanation:

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