Answer:
Step-by-step explanation:
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2x-7y=0
2x=7y
x=7/2y
Substitute that into x-6y=-5
7/2y-6y=-5
-2.5y=-5
y=2
x=7/2 x 2 = 7
x=7, y=2
Hope this helps.
Answer:
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Answer:
The standard error of the proportion is 0.0485.
Step-by-step explanation:
The standard error of a proportion p in a sample of size n is given by the following formula:
In this problem, we have that:
The standard error of the proportion is 0.0485.