A man paid $42.30 for gasoline in may, $38.60 in June, and $43 in July. What was the average monthly cost for gasoline?
1 answer:
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Answer:
The lower confidence limit of the 95% confidence interval for the population proportion of Americans who were victims of identity theft is 0.0275.
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 z-score that has a p-value of .
A 2003 survey showed that 14 out of 250 Americans surveyed had suffered some kind of identity theft in the past 12 months.
This means that
95% confidence level
So , z is the value of Z that has a p-value of
, so
.
The lower limit of this interval is:
The lower confidence limit of the 95% confidence interval for the population proportion of Americans who were victims of identity theft is 0.0275.
Probability helps us to know the chances of an event occurring. There are six possible outcomes.
<h3>What is Probability?</h3>Probability helps us to know the chances of an event occurring.
A.) The outcomes that are possible from the first spinner is 1, 2, and 3, while the outcomes possible from the second spinner are 2, Red and blue.
All the possible outcomes from this two spinner are,
(B,1), (B,2), (B,3), (R,1), (R,2), and (R,3).
Hence, there are six possible outcomes.
B.) The letters that can be used are A and B. The numbers that can be used are 1, 2, 3, and 4.
All the possible out comes are,
(B,1), (B,2), (B,3)(B,4), (A,1), (A,2), (A,3), and (A,4).
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