Mathematics, 29.01.2020 21:57, hdjsjshshsh

Of the 1,000 students in a local college, 420 own brand x mobile phones and 580 own brand y mobile phones. of these students, 80 own both brands of mobile phones. find the probability that a student chosen at random has a brand x mobile phone given that he has a brand y mobile phone.

a. 2/14

b. 5/21

c. 3/28

d. 4/29

Answers: 1

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