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andriy [413]
3 years ago
8

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 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. An appropriate method is to sample the most expensive homes in a randomly selected district. Is the study enumerative or analytic?
Mathematics
1 answer:
Leya [2.2K]3 years ago
3 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:

A sampling procedure that gives an assurance that each item or person in the population has the same chance of being included in the sample is known as a simple random sample.

 A sample obtained by dividing the population elements into strata and then selecting a random sample directly and independently from each stratum is known as a stratified random sampling.  

Simple random or stratified random sample may be used by the real estate appraiser to predict appraised value from various characteristics of size, age, number bath rooms etc.

With respect to the simple random sample method, the real estate appraiser needs to obtain a random sample of single family homes and then study or predict the required characteristics.

Whereas, for the stratified random sampling method, he has to consider each of the given neighborhood districts (10) as stratums and generate a simple random sample from each of the stratum. Then, from the generated sample he would be able to study or predict the required characteristics.

The population given in this case study is finite and identifiable. Thus, it is enumerative.

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.

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stich3 [128]

Answer:

64.286ft

Step-by-step explanation:

6.25-->14

x-->144in=12ft im going to asume you meant 144ft or that would be a very small building

14/6.25=2.24ft shadow for 1 real foot

144/2.24=about 64.286ft

5 0
2 years ago
Two angles in a triangle are 30 degrees and 40 degrees. Find the missing angle measure. Please show your math work step by step
brilliants [131]

Answer:

110

Step-by-step explanation:

Hello There!

If you didn't know the rule about angles in a triangle is that they have a sum of 180

So we can find the measure of the missing angle by subtracting the given angles (in this case 30 and 40) from 180

so the missing angle = 180 - 30 - 40

180 - 30 = 150

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so the missing angle = 110

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2 years ago
a certain bacteria populations doubles in size everyday. Suppose a sample starts with 500 bacteria. write an expression that mod
elena-14-01-66 [18.8K]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
the ordered pairs (0,-1),(1,0),(2,3),(3,8),(4,15) represent a function what is a rule that represents this function? Please help
yarga [219]

Answer:

The function rule is

f:  x\to \:  {x}^{2}  - 1

Step-by-step explanation:

The given ordered pairs are (0,-1), (1,0),(2,3),(3,8),(4,15)

We can observe the following pattern.

f(0) =  {0}^{2}  - 1 =  - 1

f(1) =  {1}^{2}  - 1 = 0

f(2) =  {2}^{2}  - 1 = 3

f(3) =  {3}^{2}  - 1 = 8

f(4) =  {4}^{2}  - 1 = 15

When we generalize this pattern, we obtain:

f(x) =  {x}^{2}  - 1

This is the function equation.

The function rule is

f:  x\to \:  {x}^{2}  - 1

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3 years ago
Can someone please check my answers
nekit [7.7K]

They are both correct

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3 years ago
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