#### Calculation of Area Under a Continuos curve......Scatter Curve.

```The variables are part of a scatter diagram, i.e. the variables
plotted on X axis do not have any defined relationship with the
Variables of Y axis......

Hi,  I am working on calculating area under a Continuous Curve..  I
have data poitnts...On X axis i have % of Cumulative numbers(Variable
X) and on Y axis i have  % of Cumulative numbers(Variable Y). If i
plot a curve by joinig thses points i get a smooth curve. If i have to
calculate the exact area under the curve using Integration Function in
Excel Sheet how should i proceed.

Data points are :
Issuers Defaulters      Cum Issuers %   Cum Defaulters %
C       3       0       0.287907869     0
B       4       2       0.671785029     7.407407407
BB      35      5       4.030710173     25.92592593
BBB     242     15      27.25527831     81.48148148
A       293     4       55.37428023     96.2962963
AA      315     1       85.60460653     100
AAA     150     0       100     100
1042    27

Want to calculate the total area under the curve formed by joining the
data points : Cum Issuers % and  Cum Defaulters %

Regards,
Abhishek
```
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abhi.ibs (4)
11/3/2010 10:29:23 AM
excel 39879 articles. 2 followers.

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