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777dan777 [17]
3 years ago
15

What is the difference between a random and biased sample?

Mathematics
1 answer:
emmainna [20.7K]3 years ago
3 0
Random probably wont go with other people said, biased may go for what has most reviews
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Add the two expressions.<br><br> 3z−4 and 2z + 5<br><br> Enter your answer in the box.
frosja888 [35]
Your answer is 5z+1 (wink) ;D
3 0
3 years ago
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Solve the system by substitution.<br> y = -3x + 4<br> y = -7x<br> Submit Answer
iVinArrow [24]

Answer:

{y,x} = {7,-1}

Step-by-step explanation:

(-7x) + 3x = 4

- 4x = 4

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   x = -1

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5 0
3 years ago
Which number (s) below represents a repeating decimal? -2/5, -7, 3/7, 11/12
Ray Of Light [21]

Step-by-step explanation: Arrange the terms in ascending order: -7, -2/5, 3/9, 11/12.

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6 0
3 years ago
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I need these correct answers nowww
faust18 [17]

Answer:

1 - 3/14

2 - 10 5/8

3 - 3/8

4 - 12 1/4

Step-by-step explanation:

numbers 1 and 3 are simple, just multiply the numerators and denominators together.

Numbers 2 and 4, you convert the mixed number to an improper fraction and multiply. Don't forget to switch the answer back to a mixed number if needed!

3 0
3 years ago
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An enrolling high school student has the following subjects to open to her:
adell [148]
So we notice that they increase by 1
each time
first slot we have all of them so
4 choices=1st slot
3 choices=2nd slot (1 was taken for 1st slot)
2 choices
1 choice
multiply
4 times 3 times 2 times 1=24
answe ris 24 ways
 

8 0
3 years ago
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