STATISTICS - Jamb Mathematics Past Questions and Answers

Question 116:

• JAMB 1986

Of the nine hundred students admitted in a university in 1979, the following was the distribution by state: Anambrs 185, Imo 135, Kaduna 90, Kwara 110, Ondo 155, Oyo 225. In a pie chart drawn to represent this distribution, The angle subtended at the centre by anambra is

A. 50^o
B. 65^o
C. 74^o
D. 88^o

Question 117:

• JAMB 1986

Find the median of the numbers 89, 141, 130, 161, 120, 131, 131, 100, 108 and 119

A. 131
B. 125
C. 123
D. 120

Question 118:

• JAMB 1986

Find the probability that a number selected at random from 40 to 50 is a prime

A. \(\frac{3}{11}\)
B. \(\frac{5}{11}\)
C. \(\frac{3}{11}\)
D. \(\frac{4}{11}\)

Question 119:

• JAMB 1986

A man kept 6 black, 5 brown and 7 purple shirts in a drawer. What is the probability of his picking a purple shirt with his eyes closed?

A. \(\frac{1}{7}\)
B. \(\frac{11}{18}\)
C. \(\frac{7}{18}\)
D. \(\frac{7}{11}\)

Question 120:

• JAMB 1986

The table below gives the scores of a group of students in a Mathematical test.
\(\begin{array}{c|c} Scores & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\ \hline Frequency & 2 & 4 & 7 & 14 & 12 & 6 & 4 & 1\end{array}\)
If the mode in m and the number of students who scored 4 or less is s. What is (s, m)?

A. (27, 4)
B. (14,4)
C. (13,4)
D. (4,4)