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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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Oliga [24]
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3 0
3 years ago
Read 2 more answers
There are several marbles in a bag: two red, four green, one blue, and five yellow. What is the probability of randomly drawing
GREYUIT [131]

Answer:

The probability is 5/36

Step-by-step explanation:

The total number of marbles is 2 + 4 + 1 + 5 = 12 marbles

The probability of randomly drawing a green marble would be

number of green marble/total number of marbles = 4/12 = 1/3

Now since we are replacing the total number of marbles stays the same

so, the probability of drawing a yellow marble now will be ;

number of yellow marbles/total number of marbles = 5/12

So the total probability we are having here would be; 1/3 * 5/12 = 5/36

5 0
3 years ago
The price of an item yesterday was $120 . today, the price rose to $204 . find the percentage increase.
Rzqust [24]
204 - 120 = 84

84/120 x 100 = 70%

answer: 70% increase
6 0
3 years ago
Suppose that, in some distant part of the universe, there is a star with four orbiting planets . One planet makes a trip around
WINSTONCH [101]

Answer: 90 Earth years.

Step-by-step explanation:

Analizing the information provided in the exercise, you need to find the Least Common Multiple (LCM) of the given numbers.

You can follow these steps:

1. You must descompose 6, 9, 15 and 18 into their prime factors:

6=2*3\\\\9=3*3=3^2\\\\15=3*5\\\\18=2*3*3=2*3^2

2. Finally, you need to choose the commons and non commons with their greatest exponents and multiply them. Then you get:

L.C.M=2*3^2*5=2*9*5\\\\L.C.M=90

Therefore, it will take 90 Earth years for them to all line up.

3 0
3 years ago
Explain how to estimate 498÷12
swat32
Round both numbers! :)
498 would round to the nearest hundred, 500 and 12 would round to the nearest ten, 10
You can then divide 500 and 10 which gets you 50.
Hope this helped :)
6 0
3 years ago
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