MANIPULATING AND UNDERSTANDING DATA.
Assessment
Q1 Bergwear Ltd
Cost of production(x) No.of products((f) (fx) (cf) (%cf)
1 4 4 4 6.70%
2 12 24 16 26.70%
3 22 66 38 63.20%
4 15 60 53 88.30%
5 7 35 60 100.00%
60 189
_
X =ÓFX
ÓF
189/60 = 3.15
Mean =3.15
Q2. Mode
=3, which is the most frequently occurring value.
Median- In order to do median we would draw a graph and will be a graph for % accumulative frequency. And from the graph we look at the 50% on the Y axis.
Which bring 2.6 Median value.
The number that occurs frequently is 3 and is a mode according to the data while median is the point where we get 50% in a graph.
Q3
Cost of production No. Of products Cf %Cf
1 4 4 6.45%
2 12 16 25.81%
3 22 38 61.29%
4 15 53 85.48%
5 7 60 96.77%
8 2 62 100%
_
X =ÓFX
ÓF
_
X=205/62=3.30
_
X=3.30
From the graph the median=2.7 value. Mode=3.
Because of the production cost increases, the mean will increase according to data and the graph data shows the value is 2.7. Mode will remain the same.
Q2.Compiquant Plc
Region SE SW WM NW WALES EM NE SCOT
1000+ 11400+ 11500+ 1200+ 12500+ 1300+ 13600+ 20000
8
Mean=13,000
Range is the difference between biggest and the smallest figure, which is
20000-10000= 10,000
Range = 10,000
Median 125,000
DATA COLLECTION, ANALYSIS AND PRESENTATION
Q1
From the histogram the mode is about age 27.
From the histogram it shows many football spectators are in age group of 20-2 ...