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Waec Mathematics 1991 Past Questions and Answers

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Waec 1991 Mathematics Past Questions

Question 36:


Find the mean of the distribution

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

View Answer & Explanation

Question 37:


Find the mode of the distribution

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

View Answer & Explanation

Question 38:


Find the median of the distribution

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

View Answer & Explanation

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

View Answer & Explanation

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

View Answer & Explanation



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