Representation of data - Jamb Mathematics Past Questions and Answers

Question 21:

• JAMB 1983

Find the missing value in the following table \(\begin{array}{c|c} x & -2 & -1 & 0 & 1 & 2 & 3 \\ \hline Y = x^3 - x + 3 & & 3 & 3 & 3 & 9 & 27\end{array}\)

A. -3
B. 3
C. -9
D. 13
E. 9

Question 22:

• JAMB 1983

In a class of 60 pupils, the statistical distribution of the numbers of pupils offering Biology, History, French, Geography and Additional mathematics is as shown in the pie chart. How many pupils offer Additional Mathematics?

A. 15
B. 10
C. 18
D. 12
E. 20

Question 23:

• JAMB 1983

Which of the following equations represents the graph?

A. Y = 1 + 2x + 3x²
B. Y = 1 - 2x + 3x²
C. Y = 1 + 2x - 3x²
D. Y = 1 - 2x - 3x²
E. Y = 3x² + 2x - 1

Question 24:

• JAMB 1983

The farm yield of four crops on a piece of land in Ondo are represented on the pie chart. what is the angle of the sector occupies by Okro in the chart?

A. 11^o
B. 19\(\frac{1}{3}\)^o
C. 33\(\frac{1}{3}\)^o
D. 91\(\frac{1}{3}\)^o
E. 91^o

Question 25:

• JAMB 1984

The cost of production of an article is made up as follows: Labour N70, Power N15, Materials N30, Miscellaneous N5. Find the angle of the sector representing Labour in a pie chart

A. 210^o
B. 105^o
C. 105^o
D. 175^o
E. 90^o