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Questions − Mean of Continuous Data
1.
Following is the Weight of a random item. Work out Sum Σ of
f
,
fx
and the Mean
Weight kg
Frequency
f
2 < W ≤ 5
4
5 < W ≤ 8
8
8 < W ≤ 11
10
11 < W ≤ 14
3
2.
Following is the cost of a fancy MP3 player. Work out Sum Σ of
f
,
fx
and the Mean
Cost £
Frequency
f
0 < C ≤ 50
2
50 < C ≤ 100
8
100 < C ≤ 150
7
150 < C ≤ 200
3
3.
Below is the number of Gadgets in each household. Work out Sum Σ of
f
,
fx
and the Mean
Number of Gadgets
Frequency
f
0 < G ≤ 4
4
4 < G ≤ 8
10
8 < G ≤ 12
7
12 < G ≤ 16
3
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