Calculate the interquartile range for the following data set of values:
1 answer:
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<h3>Answer: 42 square units</h3>
Check out the attached images below. In figure 1, I plotted the four points given as A, B, C, D; then connected them to form a rectangle.
Figure 2 shows 4 more points E, F, G, H made so that a larger rectangle forms. This newer larger rectangle entirely encloses the first rectangle. The idea is to find the area of the larger rectangle, and subtract off the areas of the four triangular pieces shown in figure 3. These images are attached below.
area of rectangle EFGH = base*height = 10*10 = 100
area of triangle ABE = base*height/2 = 3*3/2 = 4.5
area of triangle ADH = base*height/2 = 7*7/2 = 24.5
area of triangle CGD = base*height/2 = 3*3/2 = 4.5
area of triangle FCB = base*height/2 = 7*7/2 = 24.5
the four triangles have areas that add up to 4.5+24.5+4.5+24.5 = 58
Subtract this from the area of rectangle EFGH to get 100-58 = 42
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alternatively, you can find the distance from A to B getting roughly 4.24264 (use the distance formula). The distance from B to C is roughly 9.89949
Multiply those two values: 4.24264 * 9.89949 = 41.9999722536 which rounds to 42. There's rounding error based on the fact that the previously mentioned decimal values are approximate.
We have been given two functions and
.
Now questions is asking about what do the graphs of the two even degree functions and
have in common.
By property of even edgree polynomial we know that if it starts from top then it will also end at the top.
If it starts from bottom then it will also end in bottom.
In simple words, we can says that even degree polynomial starts and ends in same direction.
Given functions and
are also even degree polynomial so common thing about them is that they will start and end in the same direction. (Upward). You can also check the attached graph of both for better guidance.
