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Vanyuwa [196]
3 years ago
7

Identify which type of sampling is​ used? An internet site asks its members to call in their opinion regarding their webs search

ing habits
a. random.
b. systematic.
c. convenience.
d. stratified.
e. cluster.
Mathematics
1 answer:
andrew11 [14]3 years ago
7 0

Answer:

C

Step-by-step explanation:

In this question, we are asked to identity the type of sampling method that was used.

The type of sampling used here is convenience sampling.

The term convenience sampling is a type of sampling that is non-probabilistic. This means it is a sampling that is not based on probability.

A convenience sample generally contains that part of the population which is close to call and easily accessible. This means it takes it samples from population members that are available at hand and are easily reachable

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3 years ago
Mr. Smith built a rectangular-shaped sandbox for his children, measuring 4 feet by 4 feet by 6 inches. Sand has a density of app
ehidna [41]

Answer:

To completely fill the sandbox will cost $56

Step-by-step explanation:

First, we calculate volume of the rectangular-shaped sandbox:

V=long*with*height\\V=4feet*4feet*0.5feet\\V=8cubicfoot

We know that density of sand is 100 pounds per cubic foot. Then, to fill the sand box that has a volume of 8 cubic foot, we calculate by rule 3:

1cubic foot..............100 pounds

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x=\frac{8*100}{1}

x=800 pounds

We will need 800 pounds of sand to fill the sandbox, then we can calculate by rule 3 the number of bags needed and next the total cost of them:

50 pounds.......1bag

800 pounds.....x bags

x=\frac{800*1}{50} \\x=16

To calculate the cost:

1 bag ..................$3.50

16 bags.................$x

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To completely fill the sandbox will cost $56

4 0
3 years ago
Relationship B has a greater rate than Relationship A. This graph represents Relationship A.
tester [92]

Answer:

Rate in relationship A = (6 - 3)/(8 - 4) = 3/4 = 0.75

For Table A: Rate = (3 - 1.2)/(5 - 2) = 1.8/3 = 0.6

For table B: Rate = (3.5 - 1.4)/(5 - 2) = 2.1/3 = 0.7

For table C: Rate = (4 - 1.6)/(5 - 2) = 2.4/3 = 0.8

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Therefore, the correct answer is option C.

4 0
3 years ago
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