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noname [10]
3 years ago
15

The names of all 135 students in a professor's class are written on identical slips of paper, and the slips are placed into a la

rge glass jar. Then, the professor selects 5 random slips from the jar. Identify the kind of sample that is being used.
Mathematics
1 answer:
Monica [59]3 years ago
3 0

Answer: simple random sample.

Step-by-step explanation:

In the given scenario , the professor is using a lottery system which in term of statistics is known as simple random sampling technique.

In this technique a sample is drawn chosen from the entire population in such a way that all the participants in the population has an equal chance to get chosen.

Here , the professor selects 5 random slips from the jar and the chances of getting selected is equal for each students.

Thus , this is a simple random sample.

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Ahmad,Barry,andTara collected some seashells.Ahmad collected 1 over 6 of the seashells,Barry collected 1and 2 of thr seashell, a
VashaNatasha [74]
Ahmad = 1/6 
Barry = 1/2
Tara = 1 - 1/6 - 1/2 = 1/3

1/3 of the seashells = 76
3/3 of the seashells = 76 x 3
3/3 of the seashells = 228

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Answer: They had 228 seashells altogether.
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4 0
3 years ago
The equation of a curve is y=f(x). the curve goes through the points (1,3) and (3,7). f'(x) = 4x+p, where p is a number.
Nimfa-mama [501]
f'(x)=4x+p\\
f(x)=2x^2+px+C\\\\
3=2\cdot1^2+p\cdot1+C\\
7=2\cdot3^2+p\cdot3+C\\\\
3=2+p+C\\
7=18+3p+C\\\\
C=1-p\\
3p=-11-C\\\\
3p=-11-(1-p)\\
3p=-11-1+p\\
2p=-12\\
p=-6\\\\
C=1-(-6)\\
C=7\\\\
y=2x^2-6x+7

5 0
3 years ago
Explain how you can use strategy guess check and revise to solve problems that involve a given area when the relationship betwee
Aleksandr-060686 [28]
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3 0
2 years ago
At the deli counter Sandy bought 1 3/4 pounds of cheese for 4$ per pound and 2 1/4 pounds of turkey for 6$ per pound. How much d
Bogdan [553]

Answer:

10 dollars

Step-by-step explanation:

4 + 6 = 10 which mean 10 dollars spent

4 0
2 years ago
For the function given, state the middle line; f(t) = 40cos (80t + 20)
Digiron [165]

In the standard form of the equation

\\ \ f(t)=Acos[b(t\pm c)]+k\\ \\

The middle line =k

For our given problem

f(t) = 40cos (80t + 20)

On comparison we get k=0

Hence middle line=0

8 0
3 years ago
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