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:
Perimeter = 78.7 inches
Step-by-step explanation:
From the given question, applying the Pythagoras theorem to one of the congruent triangles formed, we have;
=
+
= +
=841 + 81
= 922
hyp =
= 30.3645
The perimeter of the triangle can be determined as;
perimeter = +
+
= 30.3645 + 18 + 30.3645
= 78.729
The perimeter of the triangle = 78.7 inches