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3 years ago

9

Ben bought 1/2 pound of cheese for 3 sandwiches. If he puts the same amount of cheese on each sandwich, how much cheese will eac

h sandwich have?

2 answers:

MA_775_DIABLO [31]3 years ago

6 0

(1/2)/3=1/6

Each sandwich will have 1/6 of a pound of cheese.

JulijaS [17]3 years ago

5 0

1/6 pound because 1/2 divided by 3 equals 1/6

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Step-by-step explanation:

In this case, for each sample size, we have a sampling distribution (a distribution for the population of sample means), with the following parameters:

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$\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{25}=7,900/5=1,580$

The spread of the sampling distribution is always smaller than the population spread of the individuals. The spread is smaller as the sample size increase.

This has the implication that is expected to have more precision in the estimation of the population mean when we use bigger samples than smaller ones.

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