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.