How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.
3.5 years
3.0 years
2.5 years
2.0 years
Correct answer is A
Median = (\(\frac{n + 1}{2})^{th}\)
= \(\frac{20 + 1}{2} = \frac{21}{2}\)
= 10.5
= \(\frac{{\text{10th term and 11th term}}}{2}\)
= \(\frac{3 + 4}{2} = \frac{7}{2}\)
= 3.5yrs
4.46 years
3.35 years
3.30years
3.00 years
Correct answer is B
Mean(age) = \(\frac{(1 \times 2) + (2 \times 3) + (3 \times 5) + (4 \times 6) + (5 \times 4)}{2 + 3 + 5 + 6 + 4}\)
= \(\frac{2 + 6 + 15 + 24 + 20}{20}\)
= \(\frac{67}{20}\)
= 3.35yrs
If the probability of an event occurring is x, what is the probability of the event not occurring?
1 - x
x - 1
0
\(\frac{1}{x}\)
Correct answer is A
If p is the probability of an event happening(occurring) and the probability of an event not occurring is p1 then p + p1 = 1
p1 = 1 - p
x1 = 1 - x
2
3
5
6
Correct answer is B
No explanation has been provided for this answer.
ii only
i and ii only
ii and iii only
i and ii only
Correct answer is C
No explanation has been provided for this answer.