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Sliva [168]
3 years ago
9

A student was given an assignment to determine the percentage of students that brought a bag lunch to school. The student chose

5 random classrooms and surveyed every student in those classrooms. Which type of sampling did the student use?
A.
systematic

B.
cluster

C.
stratified

D.
convenience
Mathematics
2 answers:
Scorpion4ik [409]3 years ago
5 0

The answer is B. Cluster

const2013 [10]3 years ago
5 0

Answer:  B.   cluster

Step-by-step explanation:

  • Cluster sampling is a type of sampling method in which the researcher divides the whole population into separate sets which are called as clusters. Then he selects a simple random sample of clusters from the population. The researcher conducts his analysis on data from the sampled clusters.

Given: The student chose 5 random classrooms and surveyed every student in those classrooms. It shows that the student use Cluster sampling.

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Answer:

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Step-by-step explanation:

Top row changes in +4

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2 years ago
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sertanlavr [38]
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3 0
3 years ago
Read 2 more answers
Please help me on my equation
r-ruslan [8.4K]

Step-by-step explanation:

g(x) has clearly in its core the same function curve.

but it is

1. upside-down

2. moved up from the x-axis by 1 unit

3. moved to the right of the y-axis by 3 units

so, how do we express these 3 attributes in the functional definition ?

1. easily : by flipping the sign. g(x) = -x² is the same function type just upside-down (mirrored into the negative y space).

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2. also very easy : a function is moved up or down on the coordinate grid by adding (or subtracting) a constant.

we need to move our function up by 1 unit : we add 1.

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3. this is the trickiest part. to move a function left or right we need to make the function "think" that the input value x is not x, but it is (x ± constant).

let's ignore 1. and 2. for the moment and just focus moving the original function 3 units to the right.

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that would mean g(0) = f(-3), g(1) = f(-2), g(2) = f(-1), g(3) = f(0), ...

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5 0
3 years ago
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Katarina [22]

Answer:

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Area: 96

Step-by-step explanation:

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Area - 4 * 10 = 40,

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--------------------------------

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I hope this helps :)

8 0
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