STATISTICS - Jamb Mathematics Past Questions and Answers

Question 101:

• 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 102:

• 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 103:

• JAMB 1984

Thirty boys and x girls sat for a rest. The mean of the boys scores and that of the girls were respectively 6 and 8. Find x if the total scores was 468

A. 38
B. 24
C. 36
D. 22
E. 41

Question 104:

• 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

Question 105:

• JAMB 1984

Bola choose at random a number between 1 and 300. What is the probability that the number is divisible by 4?

A. \(\frac{1}{4}\)
B. \(\frac{4}{4}\)
C. \(\frac{6}{4}\)
D. \(\frac{7}{4}\)
E. \(\frac{37}{149}\)