Eighteen pairs of measurements were taken at random to estimate the relationship between variables X and Y. A least-squares line
was fitted to the collected data. The resulting residual plot is shown. A residual plot is shown with 18 points scattered above and below the x-axis in such a way that the distance from the x-axis increases as you move from left to right. Which of the following conclusions is appropriate?
2 answers:
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Answer:
D
Step-by-step explanation:
the n th term ( explicit formula ) of a geometric sequence is
• =
where r is the common ratio and the first term
here r = =
=
and
= 64, hence
= 64
→ D
Answer:
The real perimeter is:
And the area would be:
Step-by-step explanation:
For this case we know one side of a square given 6mm.
We can begin calculating the perimeter for the scale figure with this formula:
The area for this case is given by:
And we know that the drawing has a scale of 1 mm : 7 km and if we convert the perimeter to km we got:
And the area would be: