Cluster sampling is a type of sampling method . With cluster sampling, the observer splits the population into separate groups which are called as called clusters. After dividing the whole populations into clusters he select a simple random sample of clusters from the population. The observer conducts his analysis on data from the sampled clusters.

From the given statement we can see that the automobile is doing his analysis by selecting three stores from each state (cluster) in the country and surveys all customers present in the store in a certain week.

Hence, he used cluster sampling .

4 0

3 years ago

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Which equation has the same solution as x^2-x+11=8

seraphim [82]

Answer:

There are no real solutions to this equation.

Hope This Helps!

3 0

3 years ago

A sky scraper measures 5.8 inches tall the scale of the photo to the actual skyscrapers is 1:245 how tall is the actual skyscrap

makvit [3.9K]

the skyscraper is 1421in or about 118ft 11ish stories.

6 0

3 years ago

Solve for the variable: -2c = 10

Montano1993 [528]

Hey there,

Lets solve this together, my friend

Divide both sides by −2

 $c=10/-2$

Simplify 10 /−2 to −10 / 2

 $c = -10 / 2$

Simplify 10 / 2 to 5

 $c=-5

 
$

-------- Check your work

 $
-2c=10
 
$

Let c=−5

$-2*-5=10

 
$

Simplify 2×−5 to −10

 $10=10$

Therefore, the answer is correct!

7 0

3 years ago

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