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Correlation and Regression
CORRELATION is an important statistical concept which refers to association or interrelationship among variables.
The reasons of studying correlation is for one to be capable to establish a relationship, plan and control the inputs as independent variables and the output as dependent variables
In business one may be interested to establish whether there exists a relationship among the
i. Amount of fertilizer applied on a described farm and the resulting harvest
ii. Amount of experience one has and the corresponding performance/presentation
iii. Amount of money spent on advertisement and the expected incomes after sale of the goods or service
There are two methods which measure the degree of correlation among two variables these are denoted by R and r.
Integration and Differentiation Differentiation deals along with the determination of the rates of change of business activities or merely the process of finding the derivativ
info about right triangles
A ladder sets against a wall at an angle α to the horizontal. If the foot is pulled away from the wall through a distance of 'a', so that is slides a distance 'b' down the wall ma
a man buy car at rs.50 and sells it at gain of 14% find the sp
Exponential and Logarithm Equations : In this section we'll learn solving equations along with exponential functions or logarithms in them. We'll begin with equations which invol
Ask questioOn average, Josh makes three word-processing errors per page on the first draft of his reports for work. What is the probability that on the next page he will make a) 5
Here we have considered the following points. 1. Mathematics is omnipresent, powerful and beautiful. 2. Mathematics is useful in all spheres of life. 3. Mathematics can al
George worked from 7:00 A.M. to 3:30 P.M. with a 45-minute break. If George earns $10.50 per hour and does not obtain paid for his breaks, how much will he earn? (Round to the near
can i known the all equations under this lesson with explanations n examples. please..
a wheel revolves 360 deegre revolution in one minute .Find how many radians will the wheel subtend in one second
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