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3 years ago

Lucy is estimating the income levels of households in a specific zip code. She randomly calls 100 households and collects

Mathematics

1 answer:

Lorico [155]3 years ago

7 0

The average income for the household that is surveyed should represent the sample data is not relevant.

The information that should be considered as follows:

The level of the income of the household represents the parameter of the population.
The total income for the household that is surveyed represents the statistics of the sample.
The household i.e. surveyed is relevant for the sample of the total population that lives in the zip code.

Therefore we can conclude that the average income for the household that is surveyed should represent the sample data is not relevant.

Learn more about the income here: brainly.com/question/14732695

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For what values of x is the equation true? (Form 1st!)<br> x^2-4x=32

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3 years ago

Read 2 more answers

Rachel's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Rachel $4.30 per pound, and typ

Sergio039 [100]

Step 1

Write out the system of equations

$let\text{ x represent pound of Type A coffee and y represent Type B coffee pound }$ $\begin{gathered} 4.30x+5.9y=738.80----(1) \\ x+y=148---(2) \end{gathered}$

Step 2

Find the value of one pound of type A coffee, x

$\begin{gathered} From\text{ equation 2; x+y=148} \\ Therefore \\ y=148-x \end{gathered}$ $\begin{gathered} Substitute\text{ for y in equation 1} \\ 4.30x+5.9(148-x)=738.80 \\ 4.30x+873.2-5.9x=738.80 \\ 873.2-738.80=5.9x-4.3x \\ 134.4=1.6x \\ x=84pounds \end{gathered}$

Therefore the answer will be;

$\begin{gathered} x+y=148 \\ 84+y=148 \\ y=64\text{ pounds} \\ \end{gathered}$

The pounds of type B coffee she used is 64pounds

The pounds of type A coffee she used is 84 pounds

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1 year ago

A bag contains 16 green marbles, 12 red marbles, 15 white marbles, and 7 black marbles. what is the probability of drawing a gre

kupik [55]

The probability of drawing a green marble will be found as follows:

1. First, find your total number of outcomes by adding together all of the types of marbles to find the total you might draw from the bag so that you may make this a proportion. Now, you get your type of marble you want to know the probability of, and you put the total number of green marbles over this number. The total number of possibilities is 50, and the number of green marbles is 16.

2. I'm not sure what type of answer you are looking for, but the following answers could be the following:
- 16/50
- 32%
-.32

Hope this helps.

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3 years ago