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Mathematics 1991 Waec Past Questions and Answers

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Mathematics 1991 Waec Past Questions


Question 36 :



Find the mean of the distribution

A. 3.5
B. 4.0
C. 4.4
D. 5.0
E. 5


Question 37 :



Find the mode of the distribution

A. 40
B. 9
C. 7
D. 5
E. 2


Question 38 :



Find the median of the distribution

A. 9
B. 6.5
C. 5
D. 4.5
E. 4


Question 39 :



If events X and Y are mutually exclusive, . P(X) = 1/3 and P(Y) = 2/5, P(X∩Y) is

A. O
B. 2/15
C. 11/15
D. 4/15
E. 1


Question 40 :



If events X and Y are mutually exclusive, P(X) = 1/3 and P(Y) = 2/5, P(X∪Y) is

A. O
B. 2/15
C. 4/14
D. 11/15
E. 1






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