Pls help me thank youu, it shouldn't take to long :)) just how do I do it I can't remember
1 answer:
Answer:
see attached
Step-by-step explanation:
We cannot really do the construction for you, but we can tell you how it needs to go. The three sides of the triangle will have a length in cm that is equal to the given length in km divided by 20.
AB = 6 cm
BC = 8 cm
AC = 9 cm
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The area each station can be heard will be a circle of radius (100 km)/(20 km) cm = 5 cm. The overlap of those circles is the area you are to shade.
The attached diagram should give you the general idea. (Scale units are cm.)
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<em>Additional comment</em>
It works well to find B as the intersection of arcs of radius 6 cm and 8 cm, drawn from centers A and C, respectively.
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Answer:
The confidence interval is 6.6<μ<6.8.
Step-by-step explanation:
We have:
Number of observations = 601
Mean = 6.7
Standard deviation σ = 1.5
The z-score for a 95% confidence interval is 1.96.
The limits of the confidence interval can be calculated as
The confidence interval is 6.6<μ<6.8.