32 Mastering the Calculator using the Casio fx-82MS
For each banana you have to put in both numbers.
To put in the first set of numbers, press the following keys:
is used for the 1st variable
is used for the 2nd variable
Continue in this manner
After you have input all the numbers.
The display should read n = 10
To find the linear regression equation in the form
y = a + bx
you need to find the value of a and b. These keys are found under
Press a is 0.3651
Press b is 0.0430
∴the equation is y = 0.3651 + 0.0430x
To find the correlation coefficient press
r = 0.1928
There is not a high correlation between the thickness of bananas and the length of bananas
tested.
The calculator will also give you other statistics about this sample. Use to get the
mean thickness (1.055mm) or the standard deviation (0.64mm).
15.94
To Next Page
Loading...
Need help?
General
Weight and Dimensions
