Jamb Mathematics 2019 Past Questions and Answers

Question 16:

• JAMB 2019

Score(x)	0	1	2	3	4	5	6
Freq(f)	5	7	3	7	11	6	7

Find the mean of the data.

A. 3.26
B. 4.91
C. 6.57
D. 3.0

Question 17:

• JAMB 2019

Score(x)	0	1	2	3	4	5	6
Freq(f)	5	7	3	7	11	6	7

Find the variance

A. 3.42
B. 4.69
C. 4.85
D. 3.72

Question 18:

• JAMB 2019

The locus of a point which moves so that it is equidistant from two intersecting straight lines is the

A. Bisector of the two lines
B. Line parallel to the two lines
C. Angle bisector of the two lines
D. Perpendicular bisector of the two lines

Question 19:

• JAMB 2019

If \(4\sin^2 x - 3 = 0\), find the value of x, when 0° \(\leq\) x \(\leq\) 90°

A. 90°
B. 45°
C. 60°
D. 30°

Question 20:

• JAMB 2019

In the figure above, |CD| is the base of the triangle CDE. Find the area of the figure to the nearest whole number.

A. 56 cm\(^2\)
B. 24 cm\(^2\)
C. 42 cm\(^2\)
D. 34 cm\(^2\)