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
enyata [817]
2 years ago
10

To gather information on customer satisfaction, a researcher randomly selects four store locations and interviews all the custom

ers at those selected stores. This sampling technique is called:
Mathematics
1 answer:
Schach [20]2 years ago
6 0

Answer:

This sampling technique is called cluster

Step-by-step explanation:

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

In this question:

The population is divided into groups(by stores), and all elements of the groups(all customers at the stores are sampled), which is the characteristic of a cluster sampling.

You might be interested in
A ball is thrown with a slingshot at a velocity of 110 ft./sec. at an angle 20 degrees above the ground from a height of 4.5 ft.
Leviafan [203]

Answer:

T= 2.35 seconds

Step-by-step explanation:

⇒The question is on the time of flight.

⇒Time of flight is the time taken for a projected object to reach the ground.It depends on the <u>projectile angle</u> and the <u>initial velocity</u> of the projectile

Given;

Initial velocity of ball= 110ft./sec.

The projectile angle= 20°

Acceleration due to gravity, g=32 ft./s²

⇒Formulae for time of fright T= (2×u×sin Ф)/g

Where T=time of fright, u=initial velocity of projectile, Ф=projectile angle and g=acceleration due o gravity.

<u>Substituting values</u>

T= (2×u×sin Ф)/g

T=( 2×110×sin 20°) / 32

T= 2.35 seconds

3 0
3 years ago
Read 2 more answers
I asked this earlier and got no answer. Will give brainliest
Virty [35]
The area of a square is

s • s

We can also write this as

s^2

So, for any side length “s”, we can make a function, A(s), such that

A(s) = s^2

Now that we have a quadratic equation for the area of a square, let’s go ahead and solve for the side lengths of a square with a given area. In this case, 225 in^2

225 = s^2

Therefore,

s = sqrt(225)

s = 15

So, the dimensions are 15 x 15 in

6 0
3 years ago
What is the solution of the equation 4[x + 2(3x – 7)] = 22x – 65?
Lelu [443]
X = -3/2
I hope my work .... helped you out a little.

3 0
3 years ago
Read 2 more answers
Classify the triangle by its sides, and by its angles ​
ivolga24 [154]
There is no triangle
5 0
2 years ago
PLEASE HELP I WILL GIVE BRAINLEST
Korvikt [17]

Answer:

Angle WZY=31degrees

Step-by-step explanation:

5x+11=8x-1

11+1=8x-5x

12=3x

X=12/3

X=4

Substitute x=4 in 5x+11

5(4)+11=31

6 0
2 years ago
Other questions:
  • Laura wants to show 70 in tens. How many tens will she draw? How do you know?
    8·2 answers
  • 3) A construction company uses 900 bricks to
    8·1 answer
  • If i want to divide a circle into 22 equal parts on a piece of cardboard that is6'' by 6 and 1/2" how do i do the math
    6·1 answer
  • A Triangle has angles of 37 and 25 degrees. What is the measurement of the third angle?​
    10·2 answers
  • ......i need help please..........​
    10·2 answers
  • Use the discriminant to describe the roots of each equation. Then select the best description.16x2 + 8x + 1 = 0double rootreal a
    6·1 answer
  • Help <br>.....................​
    15·1 answer
  • Samuel orders four DVDs from an online music store. Each DVD costs $9.12. He has a 25% discount code, and sales tax is 6.5%. Rou
    7·2 answers
  • Tim's phone service charges $24.25 plus an additional $0.18 for each text message sent per month. If Tim's phone bill was $28.75
    9·1 answer
  • 2 Explain Does figure B appear to be a reflection of figure A for each pair of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!