1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pishuonlain [190]
3 years ago
14

A pollster uses a computer to generate 500 random numbers and then interview the voters corresponding to those numbers. identify

the type of sampling used in this example sampling
a. stratified sampling
b. systematic sampling
c. cluster sampling
d. simple random sampling
Mathematics
1 answer:
Bond [772]3 years ago
4 0

Answer: D. Simple Random Sampling

Step-by-step explanation: When selection is made or based on chance which is equal or the same for all members within a population. In the scenario described above, there is no prior shuffling, arrangement or segregation of members within the population into groups or subgroups, rather the interviewed voters were chosen at random directly from within the larger population based on equal chance. Therefore voters already have their numbers, then using a random number generator, voters whose number corresponds were interviewed is a clear scenario of simple Random Sampling.

You might be interested in
Which number line shows the solution to the inequality -3x -5 < -2
Eva8 [605]

Answer:

x > -1

See picture.

Step-by-step explanation:

-3x-5

Hope this helps.

7 0
2 years ago
Find all rational zeros and factor f(x) for<br> x^3 + 2x^2 -45x -126
alexdok [17]
The rational root are x= 7,-3,-6
You can find them by substituting y for 0
6 0
3 years ago
O terreno da fazenda de Eduardo foi aumentado 2 m na horizontal e 2 m na vertical. Se antes do aumento o terreno tinha o formato
Novay_Z [31]

Answer:

New area of Eduardo's farm after the increase = x² + 4x + 4

Nova área da fazenda de Eduardo após o aumento = x² + 4x + 4

Step-by-step explanation:

English Translation

The land on Eduardo's farm was increased by 2 m horizontally and 2 m vertically. If before the increase the land was shaped like an x-side square, what is the new area after the increases?

Solution

The previous area of Eduardo's farm is the are of a square with side lenght of x.

Area of a square = (side length)² = x²

Then, the land on Eduardo's farm was increased by 2 m horizontally and 2 m vertically.

New horizontal length of Eduardo's farm = (x+2)

New vertical length of Eduardo's farm = (x+2)

New area of Eduardo's farm = (x+2)(x+2)

= x² + 4x + 4

In Portugese/Em português

A área anterior da fazenda de Eduardo é a de um quadrado com comprimento lateral de x.

Área de um quadrado = (comprimento lateral)² = x²

Em seguida, o terreno da fazenda de Eduardo foi aumentado 2 m na horizontal e 2 m na vertical.

Novo comprimento horizontal da fazenda de Eduardo = (x + 2)

Novo comprimento vertical da fazenda de Eduardo = (x + 2)

Nova área da fazenda de Eduardo

= (x + 2) (x + 2) = x² + 4x + 4

Hope this Helps!!!

Espero que isto ajude!!!

7 0
3 years ago
Look down for question
snow_lady [41]

This has a lot of scary words and numbers in it, but it's all just fluff.
That big ugly formula is nothing but numbers, except for the 'h' in it
near the end.  When you write your altitude in place of 'h' and push
all the numbers through your calculator, the answer is the air pressure
at that altitude.

All it's asking you to do is this:

-- Write ' 100 ' into the big formula.

-- Run all the numbers through the calculator and get the pressure at 100 meters.

-- Then write ' 1000 ' into the formula.

-- Run the whole thing through the calculator again, and see what
the pressure is at 1,000 meters.

-- Subtract, and see how much the pressure changed between 100 meters
and 1,000 meters.

You want to know what I think the whole idea is here ?  I think the whole idea
is to get you to decide which things to do first as you calculate the formula,
AND to give you practice in using your calculator to do weird stuff.

In the formula, I see a power, a set of parentheses, two multiplications, and
one subtraction. You have to decide what order to do them in.  And THEN,
you have to figure out how to do them all with your calculator.

Here's the order:

-- Inside the parentheses, multiply 2.25577x 10⁻⁵ by 'h' .
-- Inside the parentheses, subtract the result from ' 1 '.
-- Take the number inside the parentheses, and raise it to the 5.25588 power.
-- Then multiply the result by 101,325 .

For 100 meters altitude, the pressure you should get is  100,129 pascals.

Make sure you can get that with your calculator when you put '100' in place
of 'h'.  And then, when THAT works, do it with 1,000 in place of 'h'.

The number you get for  1,000 meters  should be about 10,254 pascals less.


8 0
2 years ago
What is the missing number+ 400,000=400,010​
Charra [1.4K]
The answer is 100,000
5 0
3 years ago
Read 2 more answers
Other questions:
  • Slope of a line that passes through points (1,7) and (3,3)
    10·1 answer
  • Which ordered pair is in Quadrant III?
    6·1 answer
  • "if a 40-pound weight stretches the spring 4 inches, ,find the distance that a 45-pound weight stretchs the spring"
    6·1 answer
  • In a recent 10 year period, the change in the number of visitors to U. S. National Park was about -11,150,000.
    10·2 answers
  • How many times larger is 1 x 106 than 5 x 10-5?
    14·1 answer
  • The possums were on their 20 yard line. On the next four plays they gained 1 yard, lost 8 yards, lost 12 yards and gained 24 yar
    8·2 answers
  • An object dropped from a height of 600 feet has a height, h(t), in feet after t seconds have elapsed, such that h(t)=600 - 16t^2
    15·1 answer
  • Graph y - 2 = -3/4 (x - 6) using the point and slope given in the equation.
    9·2 answers
  • HELP!!! 40 PTS!<br><br> What is its area? Show your work
    7·1 answer
  • I'm not sure of the question but that's the picture
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!