Please help and NO LINKSTo conduct a survey about the type of phone service most people in Greenville prefer, 10 different blocks in the neighborhood are chosen. On these 10 blocks, 10 houses are selected at random, and then one resident of each of those houses is interviewed. This type of sampling method is

A.) simple random sampling.
B.) stratified sampling.
C.) systematic random sampling.
D.) cluster sampling.

Answers

Answer 1
Answer:

Answer:

Please help and NO LINKS

Please help and NO LINKSTo conduct a survey about the type of phone service most people in Greenville prefer, 10 different blocks in the neighborhood are chosen. On these 10 blocks, 10 houses are selected at random, and then one resident of each of those houses is interviewed. This type of sampling method is(A)

Step-by-step explanation:

(Ihopethishelps)(BRAINLEISTPLEASE)☺️♨️

Answer 2
Answer:

Answer:

Cluster sampling

Step-by-step explanation:

AI-generated answer

The sampling method described in the question is cluster sampling. In cluster sampling, the population is divided into clusters or groups, and then a random sample of clusters is selected. In this case, the blocks in the neighborhood are the clusters.

Here is a step-by-step explanation of why this is cluster sampling:

1. The first step is to divide the population into clusters. In this case, the population is the neighborhood, and the clusters are the different blocks within the neighborhood.

2. Next, a random sample of clusters is selected. The question states that 10 different blocks in the neighborhood are chosen. This means that the researchers randomly selected 10 blocks from the neighborhood.

3. Once the clusters are selected, a sample is taken from each cluster. The question states that on these 10 blocks, 10 houses are selected at random. This means that within each of the 10 selected blocks, 10 houses are chosen randomly.

4. Finally, the residents of each selected house are interviewed. This means that every resident of each of the selected houses is interviewed to gather information about the type of phone service they prefer.

Overall, this sampling method is cluster sampling because the population is divided into clusters (blocks), a random sample of clusters (10 blocks) is selected, and then a sample is taken from each selected cluster (10 houses on each block).


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What is are,perimeter, and type?

Volume of triangles prism 8.9 cm 8cm 14cm

Answers

Answer:

A. 1 1/5

Step-by-step explanation:

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

About how many molecules of water are in a swimming pool that holds 200 m^3 of water ? Write your answer in scientific notation . Please , I need your help !

Answers

metric is very conveinient
1gram=1cm^3 of water
1m^3=1,000,000,000 grams

water is 18.015 grams per mole
(1,000,000 grams water)/(18.015 grams/mole) = 55509.3 moles

there are 6.02e23 molecules in 1 mole of water so
55509.3 moles * (6.0221E23) = 3.3428E27 molecules of water
in 1m^3 of water
so we have200 of those
200 times 3.3428E27=6.6856E29 molecules

answer is
6.6856 times 10^29 mlecules

Divide. (4x^3+2x+1)÷(x+1)4x^2−4x+6+5/x+1

4x^2−4x+6−5/x+1

4x^2+4x−6−5/x+1

4x^2+4x+6−5/x+1

Answers

(4x^3+2x+1)/(x+1)=4x^2-4x+6-(5)/(x+1)

What is 300,000+90,000+5,000+40

Answers

Answer:

395,040

Step-by-step explanation:

300,000+90,000+5,000+40

=390,000+5,000+40

=395,000+40

=395,040

What are the pros and cons of leasing and buying?

Answers

Answer:

Step-by-step explanation:

Leasing and buying have their own set of advantages and disadvantages. Here are some pros and cons of both options:

Leasing:

Pros:

1. Lower monthly payments: Leasing typically requires lower monthly payments compared to buying because you are essentially paying for the depreciation of the vehicle during the lease term, rather than the full cost of the vehicle.

2. No long-term commitment: Leases usually have shorter terms, typically 2-4 years, which allows you to change vehicles more frequently and easily adapt to your changing needs.

3. Lower maintenance costs: Since lease terms often coincide with the manufacturer's warranty period, you may be covered for most repairs and maintenance costs, reducing your out-of-pocket expenses.

4. Ability to drive newer models: Leasing enables you to drive a new car every few years, keeping you up-to-date with the latest technology and safety features.

Cons:

1. No ownership: When you lease, you do not own the vehicle. You are essentially renting it for the duration of the lease term.

2. Mileage restrictions: Most leases come with mileage restrictions, typically around 10,000-15,000 miles per year. Exceeding these limits can result in additional fees.

3. No equity: Since you don't own the vehicle, you won't build equity over time like you would with a purchased vehicle.

4. Potential for extra charges: At the end of the lease, you may be responsible for additional charges for excess wear and tear or mileage.

Buying:

Pros:

1. Ownership: When you buy a vehicle, you own it outright and can use it as long as you want without any restrictions.

2. Build equity: As you make payments on a purchased vehicle, you build equity over time, which can be beneficial if you plan to sell or trade in the vehicle in the future.

3. No mileage restrictions: Unlike leasing, buying a vehicle allows you to drive as many miles as you want without any excess mileage fees.

4. Personalization: When you own a vehicle, you have the freedom to customize and modify it to your liking.

Cons:

1. Higher upfront costs: Purchasing a vehicle typically requires a higher upfront cost, including a down payment, sales tax, and other fees.

2. Higher monthly payments: Since you are paying for the full cost of the vehicle, monthly payments for buying a vehicle are generally higher than lease payments.

3. Depreciation: Vehicles depreciate over time, which means their value decreases. When you buy a vehicle, you may experience a loss in resale value.

4. Maintenance costs: As the owner, you are responsible for all maintenance and repair costs once the manufacturer's warranty expires.

It's important to consider your personal preferences, financial situation, and long-term goals when deciding between leasing and buying. Each option has its own advantages and disadvantages, so choose the one that aligns with your needs and priorities.

work the area of a rectangle out but already knowing the area and needing to know the length as it is two centermeters more than the width, area being 469

Answers

the area of a rectangle is the length times width:
a = l*w
the length is 2 centimeters more than the width:
l = w + 2
express area in terms of width
a = l*w
a = (w + 2)w
a = w^2 + 2w
w^2 + 2w = 469
w^2 + 2w - 469 = 0
we can solve using the general quadratic formula:
w = (-2 +- √(4 + 1876))/2
w = (-2 +- 43.36)/2
we use the positive solution:
w = (-2 + 43.36)/2
w = 20.68
thus the width is 20.68 cm
l = w + 2 = 20.68 + 2
l = 22.68
and the length is 22.68 cm