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Naily [24]
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?
Mathematics
2 answers:
Tju [1.3M]3 years ago
8 0

Answer:

Step-by-step explanation:

did you get the answers???

Ede4ka [16]3 years ago
6 0

Answer:

The student used cluster sampling.

Step-by-step explanation:

The student chose 5 random classrooms and surveyed every student in those classrooms.

This is a form of cluster sampling.

Cluster sampling is a sampling method where the population is divided into different groups by the researcher. These groups are called clusters.

Then out of these clusters, simple random samples are selected and the required survey is conducted from the sampled clusters.

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Ray Of Light [21]

It is given that the area of the circular garden = 100 ft^2

Area of circle with radius 'r' = \pi r^2

We have to determine the approximate distance from the edge of Frank’s garden to the center of the garden, that means we have to determine the radius of the circular garden.

Since, area of circular garden = 100

\pi r^2 = 100

\frac{22}{7} \times r^2 = 100

r^2 = \frac{700}{22}

r^2 = 31.8

r = \sqrt{31.8}

So, r = 5.6 ft

r = 6 ft (approximately)

Therefore, the approximate distance from the edge of Frank’s garden to the center of the garden is 6 ft.

So, Option A is the correct answer.

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3 years ago
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Answer:

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You have the choice of logging on at one of two Internet cafés. Their posted rates are as follows: Log-On Café: $5.50 plus $0.15
erastovalidia [21]
1. 5.50 + 0.15 * 45 = 12.25

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Please help, I need it soon.
nadya68 [22]
Answer is : 8v^3+ 14v^2+11v+3
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Solution

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So base area = 4v^2 +5v+3
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