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andrew11 [14]
3 years ago
6

Definition of a random sample

Mathematics
2 answers:
Gnesinka [82]3 years ago
7 0

Answer:

Step-by-step explanation:

In statistics, a simple random sample is a subset of individuals (a sample) chosen from a larger set (a population). Each individual is chosen randomly and entirely by chance, such that each individual has the same probability of being chosen at any stage during the sampling process, and each subset of k individuals has the same probability of being chosen for the sample as any other subset of k.

Eduardwww [97]3 years ago
5 0

Answer:

Step-by-step explanation:

random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. A simple random sample is meant to be an unbiased representation of a group.

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What is the measure of the missing angle in this triangle<br> Yes
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The measure of the missing angle is 25 degrees.

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Write this ratio in its simplest form<br>5kg : 20g​
nalin [4]

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1kg : 4kg

Step-by-step explanation:

You need to simplify the current equation

5 : 20

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3 years ago
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Real World Percentages: Roman went shopping for school
Crank
Roman will have to pay $89.67 for his school supplies.
Since you needed help, I’ll show you my work so you know for next time:

85.40 (.05) = 4.27
85.40 + 4.27
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3 years ago
Which line(s) intersect the parabola y = x^2 − 3x + 4 at two points? Select all that apply. A. y = –3x + 2 B. y = –3x + 3 C. y =
TEA [102]

Answer:

C and D

Step-by-step explanation:

Equating the line A and the parabola, we get

-3x + 2 = x² - 3x + 4

0 = x² - 3x + 4 +3x - 2

0 = x² + 2

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which has no real solutions. Then, the line A and the parabola don't intersect each other.

Equating the line B and the parabola, we get

-3x + 3 = x² - 3x + 4

0 = x² - 3x + 4 + 3x - 3

0 = x² + 1

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which has no real solutions. Then, the line B and the parabola don't intersect each other.

Equating the line C and the parabola, we get

-3x + 5 = x² - 3x + 4

0 = x² - 3x + 4  + 3x - 5

0 = x² - 1

1 = x²

√1 = x

which has 2 solutions, x = 1 and x = -1. Then, the line C and the parabola intersect each other.

Equating the line D and the parabola, we get

-3x + 6 = x² - 3x + 4

0 = x² - 3x + 4  + 3x - 6

0 = x² - 2

2 = x²

√2 = x

which has 2 solutions, x ≈ 1.41 and x ≈ -1.41. Then, the line D and the parabola intersect each other.

4 0
3 years ago
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