2009-II-54
Ans: A
A is true. The percentage increase of the annual reven
… Read A is true. The percentage increase of the annual reven
HKCEE - 2009 - Paper 2 -
2010-II-34
Ans: A
The mean $a$
… Read The mean $a$
$\begin{array}{cl}
= & \dfrac{x+x
2010-II-35
Ans: A
The mean of the distribution
… Read The mean of the distribution
$\begin{array}{cl}
= &#
2010-II-36
Ans: A
Note that the upper-quartile and the lower-quartile
… Read Note that the upper-quartile and the lower-quartile
2010-II-54
Ans: B
A may be false. It is because we do not know the actual am
… Read A may be false. It is because we do not know the actual am
2011-II-34
Ans: B
Consider the mean of the weights of the seven boys, we h
… Read Consider the mean of the weights of the seven boys, we h
2011-II-35
Ans: D
… Read To draw a box-and-whisker diagram, we only consider t
2011-II-36
Ans: D
Consider the range, we have
… Read Consider the range, we have
$\begin{array}{rcl}
61 &
2011-II-53
Ans: A
I is one of the disadvantages. Only 4 people are select
… Read I is one of the disadvantages. Only 4 people are select
2011-II-54
Ans: B
I may be false. Suppose the mark of the students in Grou
… Read I may be false. Suppose the mark of the students in Grou
2011SP-I-09
Ans: (a) $60$ (b) No
… Read -
$\begin{array}{rcl}
x & = & 7
2011SP-I-14
Ans: (a) Median $=62\%$, mean $=60\%$ (b) (i) $58\%$ (ii) $a
… Read 2011SP-II-27
Ans: D
According to the box-and-whisker diagram, the lower
… Read According to the box-and-whisker diagram, the lower
2011SP-II-28
Ans: B
There are $23$ staff members in the office. Therefore
… Read There are $23$ staff members in the office. Therefore
2011SP-II-29
Ans: D
For the group $\{a-7, a-1, a, a+2, a+4, a+8\}$.
… Read For the group $\{a-7, a-1, a, a+2, a+4, a+8\}$.
The mea
2011SP-II-30
Ans: B
I is correct. The sample size is only 2, very small.
… Read I is correct. The sample size is only 2, very small.
II i