Question

1. A coustruction firm is working ou two different projects. Let A be the event that the first one is completed by the contract date and defined B atualogously for the second project. (a) Explain the events AUB and An B in words (b) II P(AUB)-0.9 and P(AnB) -0.5, what is the probability that exactly one (Le. not both) is completed by the contract date? Hint: Draw a Venn diagram.)

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The below solution uses the concept of basic probability and venn diagrams.

CoMtuactdah Lontranct de at liest onpoet Veean diam チAuß ol at AM88 >, 、 I.pndra hurm (wł. 31 . onu.., , ex.-.tw H,,1/ 7cxart nng 0.9- O.5

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