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135 UB students were surveyed and asked how many hours a week they spent studying. The results are in the table below?Less than 5hrs (5 to10hrs)  (More than 10)  TotalMale (M)    25     25                 20                   70Fmale (F)  20      30                15                    65Total          45      55                 35                 135a) Complete the joint and marginal probability. b) Find the probability that a student studied 5 to 10 hours. c) Find the probability that a student is a male and spends less than 5 hours studying. d) Find the probability that a student is a female or spends more than 10 hours studying. e) Find the probability that a student spends more than 10 hours studying given that the student is a female? f) Find the probability that a student is a male given that he spends less than 5 hours studying. 

135 UB students were surveyed and asked how many hours a week they spent studying. The results are in the table below?

Less than 5hrs (5 to10hrs)  (More than 10)  Total

Male (M)    25     25                 20                   70

Fmale (F)  20      30                15                    65

Total          45      55                 35                 135

a) Complete the joint and marginal probability. 

b) Find the probability that a student studied 5 to 10 hours. 

c) Find the probability that a student is a male and spends less than 5 hours studying. 

d) Find the probability that a student is a female or spends more than 10 hours studying. 

e) Find the probability that a student spends more than 10 hours studying given that the student is a female? 

f) Find the probability that a student is a male given that he spends less than 5 hours studying. 

 
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