CALC 1 Curve Fitting: Exponential Example

Calculate the correlation, m factor, b factor and estimates for the following data:

X	Y
2	33
3	42
4	54
5	64
6	77

will clear the x and y lists.

Data entry:

For x=2 and y=33

33

2

Repeat for the remaining data.

will calculate the sum of x and y so you can check if the data was entered correctly.

For this example the sum of x is 20 and the sum of y is 270.

Any entry errors in the data can be easily corrected using the List Manager.

Data can be shared between the LIN, LN, EXP and PWR curve fitting calculators as long as the required values are >0.

Calculations:

Calculates the correlation of 0.9965

Calculates the m factor of of 0.2116

Calculates the b factor of 22.1724

Estimates:

Find the estimate of y for x=6 and x=2.

6 Calculates the estimate of 78.9119

2 Calculates the estimate of 33.8523