Waec Mathematics Past Questions For Year 1989

Question 26

For a class of 30 students, the scores in a Mathematics test out of 10 marks were as follows;

4,5,7,2,3,6,5,5,8,9,5,4,2,3,7,9,8,7,7,7,3,4,5,5,2,3,6,7,7,2

What is the range of the distribution?

waec 1989

• A. 2
• B. 7
• C. 8
• D. 9
• E. 10

Question 27

For a class of 30 students, the scores in a Mathematics test out of 10 marks were as follows;

4,5,7,2,3,6,5,5,8,9,5,4,2,3,7,9,8,7,7,7,3,4,5,5,2,3,6,7,7,2

What is the median score?

waec 1989

• A. 2
• B. 7
• C. 8
• D. 9
• E. 10

Question 28

For a class of 30 students, the scores in a Mathematics test out of 10 marks were as follows;

4,5,7,2,3,6,5,5,8,9,5,4,2,3,7,9,8,7,7,7,3,4,5,5,2,3,6,7,7,2

What is the mode of the score

waec 1989

• A. 3
• B. 4
• C. 5
• D. 6
• E. 7

Question 29

If A = {a,b,c}, B = {a,b,c,d,e} and C = {a,b,c,d,e,f}. Find (A∪B)∩(A∪C)

waec 1989

• A. {a,b,c,d}
• B. {a,b,c,d,e}
• C. {a,b,c,d,e,f}
• D. {a,b,c}
• E. Φ

Question 30

The table above gives the scores of a group of students in an English Language test

If a student is chosen at random from the group, what is the probability that the scored at least 6 marks?

waec 1989

• A. 3/20
• B. 1/5
• C. 1/4
• D. 3/10
• E. 3/4