Answer:
2 CLOSED CIRCLE--------->
Step-by-step explanation:
closed circle on two and go the right
Answer:
d + q + p= ¢
Step-by-step explanation:
you add all the variables
Answer:

Step-by-step explanation:
4 = ½[6] + b
3

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Answer:
<h2>radius = 1.47 cm</h2>
Step-by-step explanation:
Area of a circle = πr²
where
r is the radius
From the question
Area = 6.76 cm²
To find the radius substitute the value of the area into the above formula and solve for the radius
That's

Divide both sides by π
We have

r = 1.46689291
We have the final answer as
radius = 1.47 cm
Hope this helps you
Answer:
Step-by-step explanation:
Given that a researcher is trying to decide how many people to survey.
We have confidence intervals are intervals with middle value as the mean and on either side margin of error.
Confidence interval = Mean ± Margin of error
Thus confidence interval width depends on margin of error.
Margin of error = 
Thus for the same confidence level and std deviation we find margin of error is inversely proportional to square root of sample size.
Hence for small n we get wide intervals.
So if sample size = 300, the researcher will get wider confidence interval