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Grouped Data
For grouped data of a paired population
where,
f is the frequency of the corresponding (X,Y) values
mX and mY are the means of X and Y.
Calculate log equation: Calculate log 10 2 - log 10 3. Solution: Rule 2. log 10 (A/B): log 10 A - log 10 B log 10 2 - log 10 3 = log 10 (2/3) =
xy
Standardizing a Random Variable If X is a random variable with E(X) = m and V(X) = s 2 , then Y = (X – m)/ s is a random variable with mean 0 and standard deviatio
Computation method Whereas L = Lower class boundary of the class having the mode f 0 = Frequency of the class below the modal class
Q. How many permutations can you make of the word STATISTICS? Solution: There are 10 letters in the word STATISTICS, i.e. n=10. Three of them are S's, so n 1 =3, three are T'
Establish appropriate algebraic models for each of the following sets of data. You can use technology to assist. Plot them on grids and demonstrate how you have established each mo
find the coordinates of points of tri-section of the line joining the points (-3,0) and (6,6).
Grimm plc (Grimm) has the following transactions: a) On 1 st January 2010, Grimm issued 400,000 convertible £1 6% debentures for £600,000. The professional fees associated wit
HOW TO ADD MIXED FRACTION
A boy covered half of distance at 20km/hr and rest at 40kmlhr. calculate his average speed.
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