Mathematics 1994 JAMB Past Questions

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Find the mean deviation of the set of numbers 4, 5, 9

A. zero
B. 2
C. 5
D. 6

View Answer & Discuss (1) JAMB 1994

Class interval	1 - 5	6 - 10	11 - 15	16 - 20	21 - 25
Frequency	6	15	20	7	2

Estimate the median of the frequency distribution above

A. 10\(\frac{1}{2}\)
B. 11\(\frac{1}{2}\)
C. 12
D. 13

View Answer & Discuss (7) JAMB 1994

\(\begin{array}{c|c} x & 1 & 2 & 3 & 4 & 5 \\ \hline f & 2 & 1 & 2 & 1 & 2\end{array}\)
Find the variance of the frequency distribution above

A. \(\frac{3}{2}\)
B. \(\frac{9}{4}\)
C. \(\frac{5}{2}\)
D. 3

View Answer & Discuss (3) JAMB 1994

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In a survey, it was observed that 20 students read newspapers and 35 read novels. If 40 of the students read either newspapers or novels, what is the probability of the students who read both newspapers and novels?

A. \(\frac{1}{2}\)
B. \(\frac{2}{3}\)
C. \(\frac{3}{8}\)
D. \(\frac{3}{11}\)

View Answer & Discuss (5) JAMB 1994

The equation of the graph is

A. y = (x - 3)³
B. y = (x + 3)³
C. y = x³ - 27
D. y = -x³ + 27

View Answer & Discuss (2) JAMB 1994

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