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USPshnik [31]
3 years ago
7

To select a sample of five children from a class of 30, a researcher puts each child’s name on a slip of paper, then shuffles th

e papers in a hat and randomly picks five names. What kind of sampling is being used?
Mathematics
1 answer:
Ainat [17]3 years ago
7 0

Answer:

We conclude that  a researcher  used simple random sample.

Step-by-step explanation:

We know that select a sample of five children from a class of 30, a researcher puts each child’s name on a slip of paper, then shuffles the papers in a hat and randomly picks five names.  

We conclude that  a researcher  used simple random sample.

Because every children  has an equal chance of being included in the sample.

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chubhunter [2.5K]

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3 years ago
Please help how to make an array for prime number of 19. and 13<br><br><br><br><br>​
topjm [15]

Answer:

Prime numbers are numbers that cannot be divided into further whole numbers. You cannot divide 19 and 13 because 13 and 19 are already prime numbers.

Step-by-step explanation:

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4 years ago
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Angle G is a circumscribed angle of circle E. Major arc FD measures 280°.
mixer [17]

Answer:

The answer is 40°

Step-by-step explanation:

Solution

Now,

The Measure of major arc FD = 280°

Thus,

One complete angle measure 360°

Then

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m∠FED = 80°

Thus,

FE = DE ( the same circle Radius)

∠EFD = ∠EDF (  opposite angles to equal sides are equal)

Now

Applying angle sum property of a triangle in ΔEFD

∠EFD + ∠EDF + ∠FED = 180°

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2∠EFD = 100

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8 0
3 years ago
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find the length of a segment indicated. Round your answer to the nearest tenth if necessary. NO LINKS. ​
Mademuasel [1]

9514 1404 393

Answer:

  8.  C) 24.2

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Step-by-step explanation:

8. The radius is shown as being 7.8 +4.3 = 12.1, so the diameter x is ...

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3 years ago
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sertanlavr [38]

Step-by-step explanation:

2(5) - 4(1) +3 =9

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