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Gnesinka [82]
2 years ago
13

A certain city divides naturally into ten district neighborhoods. How might a real estate appraiser select a sample of single-fa

mily homes that could be used as a basis for developing an equation to predict appraised value from characteristics such as age, size, number of bathrooms, distance to the nearest school, and so on?
An appropriate method is to sample the most expensive homes in a randomly selected district. An appropriate method is to generate a simple random sample of all single-family homes in the city or a stratified random sample by taking a simple random sample from each of the ten district neighborhoods. An appropriate method is to randomly select which district to survey, and record data for each home in that district. An appropriate method is to sample the newest homes in all ten districts.
Mathematics
1 answer:
Marysya12 [62]2 years ago
8 0

Answer:

An appropriate method is to generate a simple random sample of all single-family homes in the city or a stratified random sample by taking a simple random sample from each of the ten district neighborhoods.

Step-by-step explanation:

Since, the city is very large and it is divided into ten districts. So, collecting sample from one district or any particular are did not give the correct estimate of whole city. So, the appropriate method to collect sample is taking the sample randomly from each district and this type of sampling method is called Stratified Sampling.

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What is the solution of the equation. find the value of y when x equals -10. 2x - 9y = -38
cestrela7 [59]

Answer:

y =2

Step-by-step explanation:

Substitute -10 for x:

2(-10)-9y = -38

-20-9y = -38

-9y = -18

9y = 18

y = 2

4 0
1 year ago
A punch recipe calls for 1/2 gallon of ginger ale, 1/2 qt of
Blababa [14]

Answer: 14

Step-by-step explanation:

1/2 gallon =2 quarts, so add the 2 quarts and the 1 quart of ginger ale, plus the one pint of lemonade and this makes 14 cups of punch

8 0
3 years ago
Brad says that the literal equation a = 3b + 4c - a is solved for a. Do you agree yes or no?
galina1969 [7]

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No

Step-by-step explanation:

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3 years ago
2.9 x 10^5 + 8.7 x 10^5
LiRa [457]

Answer:

So this is scientific notation what you do is

2.9x10^5 so you put however many zeros the is powered to 10. See there is a 5 It has to be behind or in front of the decimal you might be saying how do you know if its behind or in front well negative is in front and positive is behind .

<u><em>290,000 </em></u>there was a number already behind the decimal so there you go 5 number behind the decimal.  

Same for the second one

<u><em>290,000</em></u><em>  </em><u><em>870,000</em></u> is your answers so now you add hem together

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Step-by-step explanation:

3 0
3 years ago
Each of the 8 cats in a pet store was weighed. Here are their weights (in pounds):
kow [346]

Step-by-step explanation: The mean of a data set is equal to the sum of the set of numbers divided by how many numbers are in the set.

To find the mean of the data set shown here, let's begin by adding the numbers.

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80 will now be divided by how many numbers are in the set which is 8.

80 ÷ 8 = 10

This means that the mean of the data set is 10.

___________________________________________________

Now, let's find the median of the data set. The median is the middle number in the data set when the data set is written from least to greatest.

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The two numbers in the middle are 10 and 11.

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Therefore, 11.5 the median of the data set.

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3 years ago
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