Thai Sikh International
School
Online Assignment – Maths- Year 10 – 21.5.14 – No-13
1.
A rugby team scores the following number of
points in 12 matches.
21,
18, 3, 12, 15, 18, 42, 18, 24, 6, 12, 3
Calculate for the 12 matches
a)the mean score b )median score and c)mode.
2.
The marks out of 10 for an English test taken by
a class of students is given below.
Calculate the mean test result, median and the
mode.
|
Test Score
|
5
|
6
|
7
|
8
|
9
|
10
|
|
Frequency
|
2
|
4
|
6
|
7
|
5
|
4
|
3.
Fifty sacks of grain are weighed as they are
unloaded from a truck. The mass of each
is recorded in the grouped frequency table.
|
Mass (Kg)
|
Frequency
|
|
15 <= M < 16
|
0
|
|
16 <= M < 17
|
3
|
|
17 <= M < 18
|
6
|
|
18 <= M < 19
|
14
|
|
19 <= M < 20
|
18
|
|
20 <= M < 21
|
8
|
|
21 <= M < 22
|
1
|
a)
Calculate the mean mass of the 50 sacks
b)
State the modal class.
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