Jamb Mathematics 2011 Past Questions and Answers

Question 41:

• JAMB 2011

\(\begin{array}{c|c}
Class Interval & 3 - 5 & 6 - 8 & 9 - 11 \\ \hline Frequency & 2 & 2 & 2 \end{array}\). Find the standard deviation of the above distribution.

A. √5
B. √6
C. √7
D. √2

Question 42:

• JAMB 2011

In how many was can the letters of the word ELATION be arranged?

A. 6!
B. 7!
C. 5!
D. 8!

Question 43:

• JAMB 2011

In how many ways can five people sit round a circular table?

A. 24
B. 60
C. 12
D. 120

Question 44:

• JAMB 2011

Find the probability that a number picked at random from the set(43, 44, 45, ..., 60) is a prime number.

A. \(\frac{2}{3}\)
B. \(\frac{1}{3}\)
C. \(\frac{2}{9}\)
D. \(\frac{7}{9}\)

Question 45:

• JAMB 2011

Find the derivative of \(\frac {\sin\theta}{\cos\theta}\)

A. Sec² \(\theta\)
B. Tan \(\theta\) cosec \(\theta\)
C. Cosec \(\theta\)sec \(\theta\)
D. Cosec²\(\theta\)