Using the z-distribution, it is found that the correct option regarding the question in the problem is given by:
B. No, since the confidence interval includes values less than 50%, his opponent may get more votes.
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:

In which:
is the sample proportion.
In this problem, we have a 95% confidence level, hence
, z is the value of Z that has a p-value of
, so the critical value is z = 1.96.
In this problem, the parameters are given as follows:

Hence, the bounds are given by:


The lower bound is below 0.5, hence option B is correct.
More can be learned about the z-distribution at brainly.com/question/25890103
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Answer:
(x - √7*√x) / (x - 7)
Step-by-step explanation:
I suppose your expression is √x / (√x + √7)
(√x * (√x - √7)) / ((√x + √7) * √x - √7)) = (√x * √x - √7 * √x) / (x - 7)
= (x - √7*√x) / (x - 7)
Answer:
$75
Step-by-step explanation:
Remove $25 from $150. (125)
Calculate 40% of 125. (50)
Remove that 40%. (75)
So...
150 - 25 = 125 - 50 = 75
Answer:
I think it is 2/4=1/2
Step-by-step explanation:
Let K=king
A=ace
Then you could the pattern KA, AK
So I think it would be 2/4=1/2
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