least squares regression line equation casio calculator

#Least squares regression line equation casio calculator how to
#Least squares regression line equation casio calculator plus

While single-variable statistical calculation is selected, you can perform normal distribution calculation using the functions shown below from the menu that appears when you press and then select >. Performing Normal Distribution Calculations (Single-Variable Data Only) For the argument, input the value of y immediately before this function.įor an example of the operation to determine estimated values, see 'Calculating Estimated Values (Paired-Variable Data Only)'. Function for determining x estimated value for an input y-value. For the argument, input the value of x immediately before this function. Function for determining the y estimated value for an input x-value. For the argument, input the value of y immediately before the x ˆ 1 or x ˆ 2 function. Functions for determining x 1 and x 2 estimated values for an input y-value. regression coefficients for quadratic regression Press, select the Statistics app icon, and then press. This registers the value and displays up to six of its digits in the cell.Įxample 1: To select paired-variable and input the following data: (170, 66), (179, 75), (173, 68)ġ. Use the cursor keys to move the cursor between cells.Īfter inputting a value, press. Rules for Inputting Sample Data on the Statistics Editorĭata you input is inserted into the cell where the cursor is located. Press to return to the Statistics Editor. While the Statistics Editor is displayed, press and then select >.

You can use the Freq column to specify the frequency (the number of times the same sample appears in the data group) of each sample value.ġ.

If you turn on the Frequency setting on the TOOLS menu, a column labeled 'Freq' will also be included on the Statistics Editor. Statistical calculations can take considerable time when there are a large number of data items. Changing the Frequency setting on the TOOLS menu Changing from one regression type to another inside the REG Mode also clears these variables.- Switching the statistical calculation type between single-variable and paired-variable These variables are used for statistical calculation temporary memory, so any data you may have assigned to them may be replaced by other values during statistical calculations.Įntering the REG Mode and selecting a regression type (Lin, Log, Exp, Pwr, Inv, Quad) clear variables A through F, X, and Y. Precautions when editing data input for standard deviation also apply for regression calculations.ĭo not use variables A through F, X, or Y to store data when performing statistical calculations. The above results can be obtained in any order, and not necessarily that shown above. To input the data '20 and 30' five times, for example, press 20 30 ( ) 5. You can also input multiple entries of the same data using ( ). Next, use the regression formula to estimate the values for y ˆ (estimated value of y) for x i = 16 and x ˆ (estimated value of x) for y i = 20. The following shows the regression formulas for each type of regression. Use the same key operations as linear regression to recall results for these types of regression. Logarithmic, Exponential, Power, and Inverse Regression Finally, calculate the coefficient of determination (r 2) and sample covariance ( ∑ xy - n∙ x -∙ y - n - 1).Įach time you press to register your input, the number of data input up to that point is indicated on the display ( n value).Ĭoefficient of Determination = 0.965517241 Next, use the regression formula to estimate atmospheric pressure at -5☌ and temperature at 1000 hPa.

Function Calculation Input Ranges and Precision.

▶Calculation Ranges, Number of Digits, and Precision.

▶Before Assuming Malfunction of the Calculator.

Regression Calculations (REG) (fx-82MS/fx-85MS/fx-300MS/fx-350MS only).

▶Permutation (nPr) and Combination (nCr).

#Least squares regression line equation casio calculator plus

▶Random Integer (RanInt#) (fx-220 PLUS only).▶Rectangular-Polar Coordinate Conversion.▶Power Functions and Power Root Functions.▶Exponential Functions, Logarithmic Functions.▶Hyperbolic Functions, Inverse Hyperbolic Functions.

#Least squares regression line equation casio calculator how to

▶Trigonometric Functions, Inverse Trigonometric Functions This short video shows how to calculate the equation of the regression line of best fit, using a Casio 2nd edition fx-82AU PLUS II or fx-100AU PLUS.Natural Logarithm Base e (fx-82MS/fx-85MS/fx-300MS/fx-350MS only).Converting Values between Sexagesimal and Decimal.▶Degree, Minute, Second (Sexagesimal) Calculations.Mixed Fraction ↔ Improper Fraction Conversion.Number of Decimal Places and Number of Significant Digits.Initializing the Calculation Mode and Other Settings.(2nd edition / S-V.P.A.M.) Before Using the Calculator