Given the equation p=s1t-s2t, which equation is solved for t?
2 answers:
Answer:
Therefore, C is the correct option.
Step-by-step explanation:
We have been given the equation
The GCF of the right hand side of the equation is t. Hence, factored out the GCF.
Now, is in multiplication with 't'. So in order to isolate t, we can divide both sides by
Therefore, C is the correct option.
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Answer:
C. 50
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is:
The higher the margin of error, the wider an interval is.
As the sample size increases, the margin of error decreases. If we want a widest possible interval, we should select the smallest possible confidence interval.
So the correct answer is:
C. 50
Answer:
(1.35, 1.6)
Step-by-step explanation:
A screenshot of the graph is attached.
Once we graph the equations and
, the solution to this system will be their intersection point.
Tracing the graph on the calculator, we see that the point of intersection is at about (1.35, 1.6).
