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labwork [276]
2 years ago
15

A teacher has 36 students who are sitting in 6 rows of 6 desks. He wants to survey the students about the homework policy. Which

of the following uses cluster sampling?
O Randomly assign the students to desks, and number the students 01-36. Use a random number table to generate
a sample of students.

O Randomly assign the students to desks. Number the rows 1 to 6. Use a random number table to select a number from 1 to 6, then survey every student in that row.

O List all of the students alphabetically. Survey the 2nd person (with the number 2 being randomly chosen), then survey every 5th student after that.

O List all of the students alphabetically. Survey 1 randomly chosen student whose last name begins with A, then continue the process through the alphabet.
Mathematics
1 answer:
lesya692 [45]2 years ago
3 0

Using sampling concepts, it is found that a cluster sampling is given by:

Randomly assign the students to desks. Number the rows 1 to 6. Use a random number table to select a number from 1 to 6, then survey every student in that row.

<h3>How are samples classified?</h3>

Samples may be classified as:

  • Convenient: Drawn from a conveniently available pool.
  • Random: All the options into a hat and drawn some of them.
  • Systematic: Every kth element is taken.
  • Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
  • Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.

Cluster sampling would be dividing the students by row, and surveying each student in a row, hence the correct option is:

Randomly assign the students to desks. Number the rows 1 to 6. Use a random number table to select a number from 1 to 6, then survey every student in that row.

More can be learned about sampling concepts at brainly.com/question/25122507

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Simplify sin(3pi minus x)
Slav-nsk [51]

Answer:

sinx

Step-by-step explanation:

hello :

note :

for all x in ℝ :   1) sin(x+2π) = sinx        2)  sin(π-x) = sinx

in this exercice :

3π - x = 2π+(π - x)

sin(3π - x) = sin(2π +(π - x)) =sin(π-x) = sinx

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3 years ago
I need help with converting liters, millilters, kiloliters etc? Okay, i am really confused! I don't understand how to get 75.01
Mamont248 [21]
Firstly, understand prefixes :)

giga 1000000000
mega 1000000
kilo 1000
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3 years ago
What is the y-intercept of the graph of the function f(x) = x2 + 3x + 5?
agasfer [191]

Answer:

(0,5)

Step-by-step explanation:

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We know that f(x) is y...so y=5, while x=0

7 0
3 years ago
Abby feeds her dog 1 1/2 cups of food each day, and Braxton feeds his dog 4 1/2 cups of food each day. In one week, how many tim
ddd [48]

Solution:

<u>Note that:</u>

  • Abby's dog: 1.5 cups of food
  • Braxton's dog: 4.5 cups of food

Looking at the information we got, we can say that Braxton's dog eats more. Let's put them into ratio form (Braxton's dog:Abby's dog)

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<u>Now, put them into fractions.</u>

  • => 4.5:1.5 = 4.5/1.5 = 3

We can conclude that Braxton's dog eats 3 times more food.

4 0
2 years ago
Read 2 more answers
82. A company spends x hundred dollars on an advertising
crimeas [40]

The company spends $649 on advertising

The sales function after advertising is given as:

S(x) = 5 + 7\ln(x + 1)

When the total sales is $19,100, we have S(x) = 19100

So, the sales function becomes

5 + 7\ln(x + 1) = 19.1

Subtract 5 from both sides

7\ln(x + 1) = 14.1

Divide both sides by 7

\ln(x + 1) = 2.014

Take exponents of both sides

x + 1 = e^{2.014

x + 1 = 7.49

Subtract 1 from both sides

x= 6.49

Hence, the company spends $649 on advertising

Read more about functions at:

brainly.com/question/12940982

5 0
3 years ago
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