Waec Mathematics 2014 Past Questions and Answers

Question 16:

• WAEC 2014

\(\begin{array}{c|c}height & 2 & 3 & 4 & 5 & 6 \\ \hline frequency & 2 & 4 & 5 & 3 & 1
\end{array}\)
The table shows the distribution of the height of plants in a nursery. Calculate the mean height of the plants.

A. 3.8
B. 3.0
C. 2.8
D. 2.3

Question 17:

• WAEC 2014

The area of a sector a circle with diameter 12cm is 66cm². If the sector is folded to form a cone, calculate the radius of the base of the cone [Take \(\pi = \frac{22}{7}\)]

A. 3.0cm
B. 3.5cm
C. 7.0cm
D. 7.5cm

Question 18:

• WAEC 2014

A chord, 7cm long, is drawn in a circle with radius 3.7cm. Calculate the distance of the chord from the centre of the circle

A. 0.7cm
B. 1.2cm
C. 2.0cm
D. 2.5cm

Question 19:

• WAEC 2014

Which of the following is a measure of dispersion?

A. Range
B. Percentile
C. Median
D. Quartile

Question 20:

• WAEC 2014

A ship sails x km due east to a point E and continues x km due north to F. Find the bearing the bearing of f from the starting point.

A. 045^o
B. 090^o
C. 135^o
D. 225^o