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ElenaW [278]
3 years ago
8

Matthew and Kobie both want to do a survey to determine how many people in their community might have the Corona 19 Virus. Which

one of the methods A-D would be the best sample method for their survey to draw a valid inference?
Your answer:

Children in his community ages 6-10


Children in his community ages 3-5


Adults and Children in the community ages 25-45


Adults and Children in his community of all ages
Mathematics
2 answers:
AlekseyPX3 years ago
6 0
There all the same age
Cuz I just know
Elza [17]3 years ago
5 0
Adults and children of all ages! In order to find the most accurate results, you need a larger sample space :)
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Ok so for starters you want to choose an equation and solve for a variable.
So, I am going to choose x from the first equation.
Add y to both sides and you get x=11+y
Next, substitute 11+y for x in the other equation so you get...
2(11+y) +10y=-6
Next distribute the 2 throug the 11 and the y
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reduce this fraction to make this easier.
y=-7/3
Now plug in why to either of the equations to find x
x-(-7/3)=11
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you can also check to see if this is correct by substituting each of these values into the equations.
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