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regression - measures of relationships- it is a concept that refers to the changes which happen in the dependent variable as a result of changes
illustration of rank correlation coefficientin a beauty competition two assessors were asked to rank the 10 contestants by using the professional
coefficient of determinationit refers to the ratio of the explained variation to the total variation and is utilized to measure the strength of the
determine rank correlation coefficient a group of 8 accountancy students are tested in quantitative techniques and law ii their rankings in the
questionsuppose that fx has x - 22and x 1 as its only factors sketch the graph of f state all the zeros of
questionlet f be a quartic polynomial ie a polynomial of degree 4 suppose that f haszeros at -2 1 3 4 and that f0 4 sketch a graph of f if fx is
questionfind the quotient and remainder whenfx x5 - x4 - 4x3 2x 3is divided by gx x-2 make sure the quotient and remainder are clearly
measures of dispersion- the measures of dispersion are extremely useful in statistical work since they indicate whether the rest of the data are
1using given data setassignment1data in the foldera make scatterplot between years since first marriage and total children ever bornbmake scatterplot
the geometric meanmeritsi this makes use of all the values described except while x 0 or negativeii this is the best measure for
the medianmeritsi this shows the centre of a described set of dataii knowledge of the determination of the median may be extended to find out
the modemeritsi this can be determined from incomplete data given the observations along with the highest frequency are already knownii the
demerits and merits of the measures of central tendencythe arithmetic mean or ammerits i it employs all the observations givenii this is a very
weighted mean- it is the mean which employs arbitrarily given weights- this is a useful measure especially whereas assessment is being done yet the
problem1 find the general solution on -pi2ltxltpi2dydx tan xy
1 a survey line on campus is measured to be 100000 ft long on horizontal ground the elevation of the line is 70000 feet and the geoid separation from
questionfind all third order partial derivatives for the function fxy log xy e xy
questionuse gauss elimination method to solve the following system of equations -y 3z4 2x-y-2z 2 2x-2yz 6 4x-y-7z
question consider a digraph d on 5 nodes named x0 x1 x4 such that its adjacency matrix contains 1s in all the elements above the diagonala00 a11 a22
questionfind inverse laplace transform of the followinga fs s-12s2 8s13 b fs e-4ss21
questionfind fourier series for the periodic function of period 2 pidefined by fx x4 - pi le x le
questiona point in 3d is first rotated anticlockwise by 45 degrees about x axisthen translated along y axis by 2 unitsfind the final position of the
questiondetermine the position and nature of stationary points of the functionfxy yx
question solve the initial value problem2x x-x 27 cos2t 6 sin 2t x02 x0 -2 by using laplace transform
questionall rates should be calculated to 3 decimal places in eg 1234 the discount factors to 5 decimal places eg 098765 and the bond prices to 3