sam's age is 2 years less than 3 times kim's age. if kim's age is x years, which expression best shows sam's age?
2 answers:
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Answer:
The lower bound for a 90% confidence interval is 0.2033.
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 .
For this problem, we have that:
90% confidence level
So , z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:
The lower bound for a 90% confidence interval is 0.2033.
Answer:
2
Step-by-step explanation:
We need to plot the points in a graph and see the general shape of the curve.
<em>Attached is the graph.</em>
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This Upside Down "U" shaped curve is that of a parabola, which has the general form
Thus, we see, the function is a 2nd degree function, highest power is 2.
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