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Thefollowing contingency table represents the results of a random sample of Fanshawe college students and the number hours of homework they do per week. 1

Thefollowing contingency table represents the results of a random sample of Fanshawe college students and the number hours of homework they do per week.

1^stSemester2^ndSemester3^rdSemester4^thSemesterTOTAL0-2 hrs1351091261425123-5 hrs1221361111074766+ hrs89915763300TOTAL3463362943121,288

(ALL ANSWERSON THIS QUESTION TO 4 DECIMALS)

Find...

a) P(4^thSemesterAND3-5 hrs)(1 mark)

b) P(2^ndSemesterOR0-2 hrs)(2 marks)

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