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Sunny_sXe [5.5K]
3 years ago
9

Suppose a population contains 80,000 people. All else being equal, a study based on a population sample that includes which of t

he following numbers of respondents would be the most reliable?
A.8000
B.8
C.800
D.80
Mathematics
2 answers:
Helga [31]3 years ago
6 0
I'd say A. 8000, because you'd get the most answers and the biggest variety in answers for a more accurate sample.
Aleksandr-060686 [28]3 years ago
4 0

Answer: A.8000

Step-by-step explanation:

In statistics , the largest possible sample gives the most reliable results.

[ Since a large sample could have more variation as compare to the small sample.]

Given : A a population contains 80,000 people.

All else being equal, a study based on a population sample that includes .

Given sample sizes :  A.8000    B.8    C.800  D.80

Clearly 8000 is the largest number .

It means numbers of respondents would be the most reliable = 8000

Hence, A is the correct answer.

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7 0
3 years ago
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Write the quadratic equation whose roots are -3 and 2 , and whose leading coefficient is 5
KiRa [710]

Step-by-step explanation:

Since, roots are - 3 & 2

Therefore, (x + 3) & (x - 2) would be factors.

Leading coefficient is 5

Hence, required quadratic equation is:

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3 years ago
A new bridge structure requires triangles that are in a ratio of 1:1. If AC = 5x − 5 and EC = 3x + 9, find the distance between
Montano1993 [528]

Answer:

C. 60 ft

Step-by-step explanation:

If triangles ABC and EDC are in a 1:1 relation, they are congruent, and  

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5x - 5 = 3x + 9

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EC = 3x + 9 = 3(7) + 9 = 21 + 9 = 30 ft

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5 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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Levart [38]

Answer:

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Step-by-step explanation:

Here, we want to solve the equation so as to get the bigger and the lesser x values

We proceed as follows;

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7 0
3 years ago
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