Find the value that makes the ratios equal. to 14, 5 to 240353645
2 answers:
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Answer:
The answer is
<h2>10 units</h2>Step-by-step explanation:
The distance between two points can be found by using the formula
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(-2,1) and (-8,9)
The distance between them is
We have the final answer as
<h3>10 units</h3>Hope this helps you
Answer:
We need a sample size of at least 650
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
In this problem:
We need a sample of size at least n
n is found when
So
Rounding up
We need a sample size of at least 650