HKDSE-MATH - 2017 - Paper 1 -

Ans: B
The lower quartile of the distribution is the data of t

Ans: B
Note that the mean of the positive integers is $5$, the

Ans: B
Let $\sigma$ marks be the standard deviation of the sc

Ans: A
Note that the second group of numbers is formed by mult

Ans: (a) $a = 48$, $b = 62$ (b) No

1. Since the range of the distrib

Ans: (a) (i) $1$ (ii) $8$ (b) (i) $3$ (ii) $19$ (c) $9$

1. 1. Since $k

Ans: C
Let $x$ be the mean of the numbers of pages of the remain

Ans: A
Note that according to the stem-and-leaf diagram, $0

Ans: B
Let $\sigma$ be the standard deviation of the test.

Si

Ans: (a) $4$ (b) (i) $\left\{ \begin{array}{l} a = 0 \\ b = 7 \e

Ans: B

I can be obtained. Since we can read the largest and the

Ans: C
A is not true. The mode of the distribution is the datum

Ans: B
Let $\mu$ marks be the mean marks of the examination.

$

Ans: A
I is true. The new mean of the new set is $6m + 5$.

II is not

Ans: (a) The mean $=5.4$, the median $=5.5$, the standard de