In a cluster sample:

A. a subset of naturally occurring groups are randomly sampled.

B. an alphabetic list of individuals is used for random selection into

the sample.

C. individuals are distinguished based on some characteristic such

as gender before they're randomly selected from the population.

D. only convenient members of the population are chosen.

E. None of the above

Answers

Answer 1

In a cluster sample only convenient members of the population are chosen. The correct option is D.

What is cluster?

In cluster sampling, a population is divided into clusters, which are smaller groups. They then choose a sample at random from these clusters.

Often employed to investigate huge populations, particularly those that are extensively geographically distributed, cluster sampling is a probability sampling technique.

Large, dispersed populations should be studied using cluster sampling because interviewing every individual would be expensive, time-consuming, and possibly impossible.

Cluster sampling enables the construction of smaller, more similar representations of the population being studied. Only practical population members are picked for a cluster sample.

Thus, the correct option is D.

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Related Questions

Which of the following identifies an error in Mathus' theory?


A. A famine caused food production to fall instead of grow as Malthus predicted.

B. The population grew much more than Malthus predicted.

C .A war reduced the population size instead of growing as Malthus predicted.

D. Food production grew much more quickly than Malthus predicted.

E. The population remained steady and did not grow as Malthus predicted.

Answers

D.- Food production grew much more quickly than Malthus predicted

Answer:

its D

Explanation:

i just took the exam it was right

what centrifugal force lead to the Rwandan civil war

Answers

Answer:

The Hutus and Tutsis. Also known as the Rwandian Genocide

Explanation:

a crocodile ate my shoes ​

Answers

Answer: Spiderman

Explanation: The raccoon man said so

Hope they weren’t crocs. Hate to see croc on croc violence ;(

describe life in the south in 2 sentences

Answers

Answer:

Loaded Guns

Explanation:

2 Loaded guns

List the molecules of the “energy investment phase” in order starting from Glucose?

Answers

Answer:

Energy investment phase. Glucose is first converted to fructose-1,6-bisphosphate in a series of steps that use up two ATP. Then, unstable fructose-1,6-bisphosphate splits in two, forming two three-carbon molecules called DHAP and glyceraldehyde-3-phosphae.

Explanation:

hope it helps you

Is a type of decision-making who over-analyzes information.

Answers

Answer:

Analytical decision-makers carefully analyze data to come up with a solution. They are careful and adaptable thinkers. They will invest time to glean information to form a conclusion.

Explanation:

Identify the legal concern that is common to both Trump v. Hawaii
(2017) and Baker v. Carr (1962)

Answers

Answer:

In Hawaii v. Trump, the Supreme Court considered whether President Trump's travel ban exceeds the President's delegated powers under the Immigration and Nationality Act and violates the Establishment Clause of the First Amendment

It should be noted that the cases established the right of federal courts to review redistricting issues outside the courts' jurisdiction.

In Hawaii v. Trump, it was considered whether President Trump's travel ban exceeds the President's delegated powers.

In  Baker v. Carr (1962), the court ruled that federal courts can enforce the 14th amendment in a situation where the state legislative districts are populated.

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Bryan takes out an unsubsidized loan of $3,000 with an interest rate of 5%/per year. How much will he owe at time of graduation?

$3,000

nothing

$3,600

$15,000

Answers

Answer:

Explanation:

C

5%3000 = 150

150 x 4 = 600

3000 + 600 = 3600

Answer: $3,600

Explanation:

3,000 * 0.05 = 150

150 * 4 = 600

3,000 + 600 = 3,600

1. f(x) = 2x^3 -3x. If h(x) is the inverse function of f, then h'(-1) =

I believe the correct answer is 1/3, but I don't know how to get it.

Answers

If f and h are inverses of one another, then we have

h(f(x)) = x

Differentiating both sides using the chain rule gives

h'(f(x)) • f'(x) = 1

Let f(x) = -1. Then it would follow that

h'(-1) = 1/f'(x)

for the value of x such that f(x) = -1. This result is known as the inverse function theorem.

Solve for x such that f(x) = -1 :

2x³ - 3x = -1

2x³ - 3x + 1 = 0

By inspection, x = 1 is a solution, since 2 - 3 + 1 = 0. So x - 1 is a factor of the left side; polynomial division yields a factorization of

(x - 1) (2x² + 2x - 1) = 0

and using the quadratic formula, we find three solutions,

x = 1, x = (-1 - √3)/2, x = (-1 + √3)/2

Since there's more than one solution here, this means f(x) is not one-to-one and thus has no inverse in the strict sense of the term.

We can however restrict the domain of f(x) to a subset over which it can be inverted. Using the fact that polynomials are monotonic over intervals between their extrema, we find the critical points of f(x) :

f'(x) = 6x² - 3 = 0   ⇒   x² = 1/2   ⇒   x = ± 1/√2

Check the sign of the second derivative at each critical point:

f''(x) = 12x

• f''(-1/√2) = -12/√2 < 0   ⇒   x = -1/√2 is a local maximum

• f''(1/√2) = 12/√2 > 0   ⇒   x = 1/√2 is a local minimum

Now we have a few choices of how to define the inverse of f(x).

• If we restrict the domain of f(x) to the interval (-∞, -1/√2), then f(x) = -1 when x = (-1 - √3)/2. Then by the inverse function theorem,

f((-1 - √3)/2) = -1   ⇒   h'(-1) = 1/f'((-1 - √3)/2) = (-1 + √3)/6

• If we instead restrict the domain to (-1/√2, 1/√2), then f(x) = -1 when x = (-1 + √3)/2. Then

f((-1 + √3)/2) = -1   ⇒   h'(-1) = 1/f'((-1 + √3)/2) = (-1 - √3)/6

• Otherwise, if we restrict to (1/√2, ∞), then f(x) = -1 when x = 1. Then

f(1) = -1   ⇒   h'(-1) = 1/f'(1) = 1/3

I am with you wherever you go, but I am never personally there.
What am I????

Answers

Answer:

I'm pretty sure the answer is God.

Larousse Language College will have 201 students in the Sixth Form next year. Mr Roche, who
does the timetabling, knows that between 70% and 75% of the students intend to study French
and between 40% and 50% of the students intend to study German. All students study either
French or German or both.

Answers

By using Venn diagram method, the smallest and the largest number of students that intend to study both French and German are 21 and 49 students respectively.

Given that Larousse Language College will have 201 students in the Sixth Form next year. And between 70% and 75% of the students intend to study French. Also, between 40% and 50% of the students intend to study German.

If  all students study either French or German or both, the least number of students that will study French will be

70/100 x 201

140. 7

Which means 141 students

The least number of students that will study German will be

40/100 x 201

80.4

That means 81 students

Also, the maximum number of students that will study French will be

75/100 x 201

150.75

That is 150 students ( Because approximation can't be done twice)

And the maximum number of students that will study German will be

50/100 x 201

100 students ( Because approximation can't be done twice)

a.) The smallest number of students that intend to study both French and German can be calculated as followed

Let the smallest number be x

141 - x + x + 81 - x = 201

222 - x = 201

- x = 201 - 222

-x = - 21

x = 21

b.) The largest number of students that intend to study both French and German can be calculated as followed

Let the largest number be y

150 - y + y + 100 - y = 201

250 - y = 201

- y = 201 - 250

-y = - 49

y = 49

Therefore, The smallest and the largest number of students that intend to study both French and German are 21 and 49 students respectively.

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In ΔABC, ∠B is a right angle, AB = 30, and sec A = 5/3. Find the value of csc C in fraction and in decimal form.
I will mark brainliest if you are correct!

Answers

sec(A) = 5/3   ⇒   cos(A) = 3/5

Angles A and C are complimentary (they sum to 90°), so

sin(C) = cos(A) = 3/5

since sin(90° - x) = cos(x) for all x, and in turn

csc(C) = 1/sin(C) = 5/3

The global positioning system (GPS) is a system of satellites that provides precise velocity and positional information for all locations on Earth. Describe how GPS data are used in the study of certain animals. (0.5 point) Think about how wild animals can be tracked over great distances.

Answers

Answer:GPS tracking is the newest technology being used to track wildlife. In GPS tracking, a radio receiver, not a transmitter, is placed on the animal. The radio receiver picks up signals from special satellites. The receiver has a computer that then calculates the location and movement of the anima

Explanation:

GPS data is extensively used in the study of certain animals to understand their movements, behaviors, and habitats.

Researchers attach GPS tracking devices to animals such as migratory birds, marine mammals, and large terrestrial mammals. These devices record the animal's location at regular intervals, allowing scientists to track their movements over time.

By analyzing GPS data, researchers can identify migration routes, feeding areas, and breeding grounds of the studied species.

This information is vital for conservation efforts, as it helps identify critical habitats and migration corridors, assess the impact of human activities, and inform effective management strategies to protect these animals and their ecosystems.

GPS technology revolutionized the understanding of animal behavior and contributed significantly to wildlife conservation efforts.

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What statement is incorrect about natural selection

Answers

Answer: What statement is incorrect about natural selection

Explanation: Human genetic modification.

What is the percent rate of increase for the exponential function f (x) = 2.5(1.3)^x

Answers

Answer:

f(x) = d/ dx (2.5x1.3)

f(x) =2.5×d/dx(1.3*)

f(x) =5xIn 13/10 x 13*/2×10*

So the answer is

f(x)=5IN13/1013*/210*

That's the correct answer I see in my book

f(x)=5•IN13/10•13*/2•10* is the percent rate of increase for the exponential function.

What is an exponential function?

The formula for an exponential function is f (x) = ax, where x is a variable and an is a constant that serves as the function's base and must be bigger than 0. The transcendental number e, or roughly 2.71828, is the most often used exponential function basis.

Y=abx y = a b x is the fundamental exponential function equation, where a denotes the y-intercept and b the growth factor.

When b > 0 and b 1, an exponential function has the form f(x) = bx. The base is b, and the exponent is x, just like in any exponential expression. The development of bacteria is an illustration of an exponential function. Some germs multiply by two per hour.

f(x) = d/ dx (2.5x1.3)

f(x) =2.5×d/dx(1.3*)

f(x) =5xIn 13/10 x 13*/2×10*

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Substance abuse does all of the
following, with the exception of
which?
A. alters perception
B. diminishes self-esteem
C. causes physical harm
D. extreme withdraw symptoms

Answers

Answer:

D

Explanation:

What are the arithmetic operators?give an example using at least one arithmetic operator and at least two values

Answers

Answer:

I don't know

Explanation:

The Image demonstrates the legacy of:
a nation-state
federalism
separatism
colonialism
dependency theory

Answers

Answer:

federalism

Explanation:

the Parliament is the federal institution with the power to make laws, to raise taxes, and to authorize government spending.

Catherine takes out a subsidized loan of $5,000 with an interest rate of 2%. How much will she owe on this loan at the time of graduation?
$5,000


$100


$5,400

$0

Answers

The answer is $5,400

Use the FOIL method to find the terms of the following multiplication problem.
(4+3i) (6-3i)

Answers

Answer:

i=2, -12/9

Explanation:

Step one: Using FOIL: (4+3i) (6-3i)--> 4*6+4*-3i+ 3i*6+ 3i*-3i

Step two: Simplify the new equation--> 24-12i+18i-9i²

Step three: Putting that into the quadratic equation--> -9i²+6i+24

Step four: Use the quadratic formula or the X-method (I'm going to use the X-method)

Step five a: Setting it up to use the X-method--> ax²+bx+c=0

Step five b: a=-9 b=6 c=14

Step six:

Step seven:

Step eight: i= -2, -12/9

Hope that helps! Let me know if you need anymore help!

Explain four reasons of preserving farm produce​

Answers

The following are some of the reasons we preserve our food.

Not to lose it freshness

.To prevent contamination and infection

.To prevent food from smelling

.To keep insect and other pest away from the food.

Keeps farm produce in good condition for planting in the next season

.To keep food for a long period of time.

Explanation:

One- Not to lose it freshness.

Two- To prevent contamination and infection.

Three- To prevent food from smelling.

Four- To keep insect and other pest away from the food.

which factor contributes least to the rate at which a stream deposits sediment?

Answers

Solution

To determine the angle of the velocity, we use the following equation.

Tan θ = Vertical velocity ÷ Horizontal velocity

As the particle moves from its initial position to its final position, its vertical velocity decreases at the rate of 9.8 m/s each second. During this time its horizontal velocity is constant. To determine the time when the angle is 45˚, we need to determine the object’s vertical velocity at this angle. Let’s determine the vertical and horizontal components of its initial velocity.

Vertical = 50 × sin 60˚, Horizontal = 50 × cos 60˚ = 25 m/s

Since horizontal velocity is constant, let’s put 25 m/s and 45˚ into the tangent equation.

Tan 45 = Vertical velocity ÷ 25

Vertical velocity = 25 m/s

To determine the time for the vertical velocity to decrease from its initial value to 25 m/s, use the following equation.

vf = vi – a × t

a = 9.8

25 = 50 × sin 60˚ – 9.8 × t

t = (25 – 50 × sin 60˚) ÷ -9.8

This is approximately 1.83 seconds.

Explain ONE way in which European practices affected the environment in the Americas in the period c. 1450-c. 1750.

Answers

A way through which European practices affected the environment in the Americas during this period was that colonization ruptured the ecosystem.

It should be noted that during this period, colonization ruptured the ecosystem. It brought in new organisms while others were eliminated.

Also, the Europeans brought many diseases with them. This decimated the population of the Native Americans. Therefore, new plants were planted by the Native Americans as medicines.

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I have cities, but no houses.
I have mountains, but no trees.
I have water, but no fish.
What am I?????

Answers

you’re a map.
hope this helps

Answer:

a map

Explanation:

Hope this helps. Plz give brainliest. Also, plz sub to kgirl633 on yt.


Looking at a hypothetical situation requires what kind of thinking

Answers

Most likely requires hypothetical thinking, such as "what if........happened?"

Pleassee Helppp!!!!
Health professionals communicate effectively by referring to the body as though it is in anatomical position.
True
False

Answers

I think it’s true but I’m sry if that’s wrong

how would most Spanish speaker ask the school principal for his or her office telephone number

Answers

Answer:

Disculpe director, ¿podria darme el número de teléfono de su oficina?

Explanation:

Tu créeme

A 40 N box is pushed 5 m up a ramp. The angle of the ramp is 37° above the horizontal. The applied force is parallel to the ramp and opposed by a frictional force of 10.0 N. Find the net increase in potential energy by the crate.

Answers

The net increase in potential energy by the crate is negative 49.4 Joules. That is, ΔP.E = - 49.4 J

Given that a 40N box is pushed 5 m up a ramp. The angle of the ramp is 37° above the horizontal.

We can find the height h of the ramp with the equation below;

h = 5sin 37

h = 3.009 m

Mass of the box = 40/9.8 = 4.082 kg

The maximum energy attained = mgh

Maximum Energy = 4.082 x 9.8 x 3.009

E = 120.36 J

The maximum K.E = Maximum P.E

1/2m[tex]U^{2}[/tex] = 120.36

m[tex]U^{2}[/tex] = 240.72

[tex]U^{2}[/tex] = 240.72 / 4.082

[tex]U^{2}[/tex] = 58.97

U = [tex]\sqrt{58.97}[/tex]

U = 7.7 m/s

We can find the acceleration by using third equation of motion

[tex]V^{2}[/tex] = [tex]U^{2}[/tex] - 2aS

Since the box is going to rest, V = 0, and acceleration will be negative

0 = 7.7^2 - 2 x a x 5

10a = 59.29

a = 59.29/10

a = 5.93 m/[tex]s^{2}[/tex]s^2

The applied force F = ma

F = 4.082 x 5.93

F = 24.2 N

Given also that the applied force is parallel to the ramp and opposed by a frictional force of 10.0 N. The net increase in potential energy by the crate will be

ΔP.E = Net work done

ΔP.E = Net force x distance

ΔP.E = (24.2 - 10 - 40sin37) x 5

ΔP.E = - 9.87 x 5

ΔP.E = - 49.4 J

Therefore, The net increase in potential energy by the crate is negative 49.4 Joules.

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EZ COLLEGE QUESTION:Which of the following people would be most appropriate to ask for a letter of recommendation to accompany your college application?:

A.the coach of your seventh grade soccer team

B.the minister of your local church who has known you for 10 years

C.the neighborhood family for whom you babysit on a regular basis

D.the friend you made at a two-week YMCA camp last summer

Answers

The minister of your local church who has known you for 10 years would be most appropriate to ask for a letter of recommendation. A letter of recommendation can help to obtain a job or college application.

A letter of recommendation is a document used to validate the work, specific skills, and/or academic performance of an individual.

These letters (letters of recommendation) are generally requested by a superior for obtaining a job or college opportunity.

The letters of recommendation can be helpful for adding extra merit to a job/college application.

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I have finals next week and I need good study habit ideas… what can I do to understand everything I need to know?

Answers

I recommend Fiveable
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