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Four of a sample of 150 computers will be selected and tested. How many ways are there to make this selection? Type a

numerical answer in the space provided. Do not type any commas or spaces in your answer.

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  1. 7 June, 16:25
    0
    20260275

    Step-by-step explanation:

    the question is same as selecting 4 things from 150 things

    = C (150,4). (nCr formula)

    =[150*149*148*147]:[4*3*2*1]

    = 49*75*149*37

    = 20260275
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