Range - Mathematics Jamb Past Questions and Answers

Question 1 :

• JAMB 1979

The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is

A. 1.5
B. 0.8
C. 1.0
D. 1.02
E. 1.05

Question 2 :

• JAMB 2017

Find the range of the following set of numbers 0.4, −0.4, 0.3, 0.47, −0.53, 0.2 and −0.2

A. 1.03
B. 0.07
C. 0.03
D. 1.0

Question 3 :

• JAMB 2017

Find the sum of the range and the mode of the set of numbers 10, 9, 10, 9, 8, 7, 7, 10, 8, 10, 8, 4, 6, 9, 10, 9, 7, 10, 6, 5

A. 16
B. 14
C. 12
D. 10

Question 4 :

• JAMB 2016

Calculate the range of 20, -6, 25, 30, 21, 28, 32, 33, 34, 5, 3, 2, and 1.

A. 32
B. 36
C. 33
D. 40

Question 5 :

• JAMB 1978

If y = 2x² + 9x - 35. Find the range of values for which y < 0.

A. 7 < x < \(\frac{5}{2}\)
B. -5 < 7 < x
C. -7 < x < 5
D. -7 < x < \(\frac{5}{2}\)