Question 3 Suppose that X is a discrete random variable with the probability mass function given by: i P1) =; where i = 1,2,3 .8 36 a) Compute (i) P (2.9999 < X < 5.0001) (ii) expected value E(X) (iii) The variance Var(X)

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.