7.34 12.18 8.14 15. 2, Σy- 59.83 , Σx 15,194, Σy2
Family of Curves
A family of curves is a group of curves that are each described by a parametrization in which one or more variables are parameters. In general, the parameters have more complexity on the assembly of the curve than an ordinary linear transformation. These families appear commonly in the solution of differential equations. When a constant of integration is added, it is normally modified algebraically until it no longer replicates a plain linear transformation. The order of a differential equation depends on how many uncertain variables appear in the corresponding curve. The order of the differential equation acquired is two if two unknown variables exist in an equation belonging to this family.
XZ Plane
In order to understand XZ plane, it's helpful to understand two-dimensional and three-dimensional spaces. To plot a point on a plane, two numbers are needed, and these two numbers in the plane can be represented as an ordered pair (a,b) where a and b are real numbers and a is the horizontal coordinate and b is the vertical coordinate. This type of plane is called two-dimensional and it contains two perpendicular axes, the horizontal axis, and the vertical axis.
Euclidean Geometry
Geometry is the branch of mathematics that deals with flat surfaces like lines, angles, points, two-dimensional figures, etc. In Euclidean geometry, one studies the geometrical shapes that rely on different theorems and axioms. This (pure mathematics) geometry was introduced by the Greek mathematician Euclid, and that is why it is called Euclidean geometry. Euclid explained this in his book named 'elements'. Euclid's method in Euclidean geometry involves handling a small group of innately captivate axioms and incorporating many of these other propositions. The elements written by Euclid are the fundamentals for the study of geometry from a modern mathematical perspective. Elements comprise Euclidean theories, postulates, axioms, construction, and mathematical proofs of propositions.
Lines and Angles
In a two-dimensional plane, a line is simply a figure that joins two points. Usually, lines are used for presenting objects that are straight in shape and have minimal depth or width.
e,f,g
![Wolf packs tend to be large extended family groups that have a well-defined hunting territory. Wolves not in the pack are driven out of the territory or killed. In ecologically similar regions,
is the size of an extended wolf pack related to size of hunting region? Using radio collars on wolves, the size of the hunting region can be estimated for a given pack of wolves. Let x
represent the number of wolves in an extended pack and y represent the size of the hunting region in km?/1000. The following data are representative of one of the national parks.
x wolves
y km²/1000
28
34
22
67
91
7.34
12.18
8.14
15.35
16.82
(a) Verify that Ex = 242, Ey = 59.83, Ex?
Ex
£y
Ex2
- 15,194, Ey2 = 787.0225, Exy = 3357.79, and r- 0.9287.
Exy
(b) Use a 1% level of significance to test the claim p > 0. (Use 2 decimal places.)
critical t
Conclusion
O Reject the null hypothesis, there is sufficient evidence that p > 0.
O Reject the null hypothesis, there is insufficient evidence that p > 0.
Fail to reject the null hypothesis, there is insufficient evidence that p > 0.
O Fail to reject the null hypothesis, there is sufficient evidence that p > 0.
(c) Verify that S. - 1.8054, a - 5.5424, and b - 0.13272.
Se
(d) Find the predicted size of the hunting region for an extended pack of 73 wolves. (Use 2 decimal places.)
| km2/1000
(e) Find an 85% confidence interval for your prediction of part (d). (Use 1 decimal place.)
| km²/1000
| km²/1000
lower limit
upper limit
(F) Use a 1% level of significance to test the claim that B > 0. (Use 2 decimal places.)
critical t
Conclusion
O Reject the null hypothesis, there is sufficient evidence that B > 0.
O Reject the null hypothesis, there is insufficient evidence that B > 0.
O Fail to reject the null hypothesis, there is insufficient evidence that B > 0.
O Fail to reject the null hypothesis, there is sufficient evidence that B > 0.
(9) Find a 95% confidence interval for ß and interpret its meaning in terms of drift rate. (Use 2 decimal places.)
lower limit
upper limit
Interpretation
For every wolf joining the pack, the hunting territory decreases by an amount that falls outside the confidence interval.
For every wolf joining the pack, the hunting territory increases by an amount that falls within the confidence interval.
For every wolf joining the pack, the hunting territory decreases by an amount that falls within the confidence interval.
O For every wolf joining the pack, the hunting territory increases by an amount that falls outside the confidence interval.
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