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3 years ago

A stack of 5 books welghs 9.5 pounds. If each book weighs the same amount, how much does each book weigh?

Mathematics

1 answer:

Dafna11 [192]3 years ago

6 0

9.5/5 = 1.9 lbs each

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3 years ago

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NeTakaya

Answer:

For this case a parameter represent the population data and for this case the parameter would be the true mean $\mu$ who represent the amount of gasoline they used in the previous week

$\bar X= \frac{\sum_{i=1}^n X_i}{3800} =11.75$

And the sample mean is an unbiased estimator of the true mean.

Step-by-step explanation:

For this case a parameter represent the population data and for this case the parameter would be the true mean $\mu$ who represent the amount of gasoline they used in the previous week

And in order to estimate the parameter of interest we use a survey of n =3800 and the sample mean who represent an statistic is given by:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And we got:

$\bar X= \frac{\sum_{i=1}^n X_i}{3800} =11.75$

And the sample mean is an unbiased estimator of the true mean.

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Step-by-step explanation:

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3 years ago

A stack of 5 books welghs 9.5 pounds. If each book weighs the same amount, how much does each book weigh?​

A stack of 5 books welghs 9.5 pounds. If each book weighs the same amount, how much does each book weigh?