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Business Data Analysis Exam Solutions

Autor:   •  February 13, 2017  •  Exam  •  8,119 Words (33 Pages)  •  306 Views

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Question One (11 marks)

Match the symbols/expressions on the left with the best descriptions on the right by placing the appropriate letters in the spaces provided.  Since there are 3 more descriptions and, therefore, not all descriptions will be assigned to a symbol/expression.

_Y__        A∩B                                A.        the probability of events A or B occurring if A and B

                                                are mutually exclusive

_L__        A│B                                B.        the expected value of X when X has a binomial

                                                distribution

_H__        n!                                C.        used to rename values or categories in a data set

_O__        [pic 1]                        D.        the expected value of a discrete random variable        

_S__        P(A)P(B)                        E.        the probability distribution for the number of successes

                                                when a sample is selected with replacement

_A__        P(A) + P(B)                        F.        the sample standard deviation

_T__        AUB                                G.        the probability distribution for the number of successes

                                                when a sample is selected without replacement

_D_        [pic 2]                        H.        the number of ways of ordering n items

_U__        [pic 3]                        I.        the probability that event A does not occur

                                                

_J__        P(A)P(B│A)                        J.        the probability that events A and B both occur

...

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