Correlation coeffcient of .186 what does it means about the form and direction.?
407979
The positive value indicates a slight positive correlation, but this is a very low correlation coefficient indicating little if any correlation.
737727
What does C represent?  If C is a constant, then this doesn't converge.\nWhat is the context?  What is the name of the class, chapter and section that this comes from?
809077
I would assume that one of your .01s in column A is something like 0.012.\n\nChange your number  format to General and see what happens.
753296
|t - 78.3| ≤ 38.3\n\nSo either t -78.3 ≤ 38.3 whence t ≤ 116.6\nOR - (t - 78.3) ≤ 38.3\nwhence - t ≤ - 40 ie 40 ≤ t\n\nSo 40 ≤ t ≤ 116.6
358834
KNOW YOUR RELATED RATES FOR CALC!! thats one thing that killed me and know your 2-D rotation around a line intergrals.
582964
You are going to have to directly ask an actuary or professor of actuarial science.  You may redirect this question to the mathematics section.  I have a great statistics background and I don't know where to find the answer to that.  I can tell you the history of Sommer's D, which is an obscure but unbelievably useful statistic, but I cannot tell you the origin of the name for that.
787514
when you say "negative" what that means is the opposite sign of the number. For example, the negative of -6 = 6 and the negative of 4.5= -4.5\n\nwhen you say Inverse correlation, you're talking about a relationship where you simply flip the fraction. for example... 3/4 becomes 4/3, and 5 becomes 1/5.
872957
Look at them carefully, find out the diff between each number and it should be obvious.\n\nEquations?
295934
Covariance (or so I assume from the context) refers to the correlation between the two random variables. Because it's zero the total variance is just the sum of the two variances. \n\n(1-a)A and aB are the actual variables giving the returns for the B and A portions of the portfolio so the variances are (1-a)^2*(b^2) and a^2 * (2*b^2) (a^2 means a squared etc.). The total variance is just the sum:\n\n(1-a)^2*(b^2) + a^2 * (2*b^2) = b^2[1 - 2a + 3a^2]\n\nYou can see that if a=0 (all A) it's b^2 and if a is 1 (all B) it's 2b^2 as it must be. The minimum is found by differentiating w.r.t. a:\n\n6a - 2 = 0 ==> a = 1/3\n\nAt first it might seem that the portfolio should consist entirely of the stock with the lower volatility (A). However the admixture (2/3 A + 1/3 B) gives a lower volatility by virtue of the diversification provided by two investments instead of one.
28597
90\n\nA pair of angles are complementary if the sum of their measures is 90 degrees.\n\nIf the two complementary angles are adjacent (i.e. have a common vertex and share a side, but do not have any interior points in common) their non-shared sides form a right angle.
155074
I get the same y=-92/79, x=127/79\n\nI thought this couldn't be right.
820527
criterion is that changing sign of x changes the sign of y\n\nso a & b are symmetric, and other's aren't, since even powers and adding a constant both ruin the symmetry
643953
depends on the direction of the force
362096
Supplements are 180 degrees munis your original angle.  So your supplement here would be 117.6.
413658
It is explained here:\n\nhttp://en.wikipedia.org/wiki/Pearson_product-moment_correlation_coefficient
768242
it means that as a (linear) transformation from the plane to the plane it reverses the orientation.\nthe way we calculate the area, is really a signed area, in the sense that it takes into consideration the orientation of the 2 vectors.\nit is a bit subtle and that is why most teachers do not really explain it.\n'
598106
you can use the following proportion:\n\ndegree/180 = radians/pi