Suppose that 55% of the approximately 4,000 school-aged children in the county have vitamin deficiency.
2 answers:
Answer: A
The samples are not independent of each other.
Explanation: Khan Answer
They are testing the same sample of students both times. Results from the first test would likely give us information about the results from the second test.
Answer:
The samples are not independent of each other.
Explanation:
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Answer:
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Explanation:
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Have an AMAZING day :)
-Emma
Answer:
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Explanation:
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Answer:
x-43y-x=-7
or, x-x-43y=-7
or, 43y=-7
or, y =-7-43
or, y=50
Answer:
3
Explanation:
(1/3x-1/6y)×18=4×18 ⇒ 6x-3y=72
6x-ay=8 if a=3 ⇒ 6x-3y=8
72≠8
a=3 ⇒ system has no solution
