Sharp W Series manual S K E Y S F O R 2 -V a R I a B L E S T AT I S T I C S, Total count of data

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“ A N S ” K E Y S F O R 2 -V A R I A B L E S T AT I S T I C S

In addition to the 1-variable statistic keys, the following keys have been added for calcu- lating 2-variable statistics.

C alculates the sum of the product for sample data x and sample data y. C alculates the sum of the data (sample datay).

C alculates the sum of the data (sample datay) raised to the second power . C alculates the average value of the data (sample datay).

C alculates the standard deviation for the data (sample datay).

C alculates the standard deviation of a data population (sample datay).

N OT E :

The codes for basic statistical quantities of sample data x and their meanings are the same as those for single-variable statistical calculations.

Let’ s check the results based on the previous data.

7.175	(Average for data x)
0.973579551	(Standard deviation for data x)
0.91070028	(Standard deviation of the population for data x)
9.875	(Average for data y)
3.440826313	(Standard deviation for datay)
3.218598297	(Standard deviation of the population for data y)
8	(Total count of data)
57.4	(Sum of data x)
418.48	(Sum of data x raised to the second power)
544.1	(Sum of the product of data x and data y)
79	(Sum of data y)
863	(Sum of data y raised to the second power)

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Contents Sciientiifiic Calculator Operatiionguiide N TEN TS Irect function Power on E Y L AY O U TEX P LO GNormal mode FIX mode TAB =DI S P L AY P AT T E R N DI S P L AY F O R M AT a N DX P O N E N T DI S P L AY SC I modeEN G mode DEG = π/2 RAD = Grad = Per ation DEG mode IsplayN G U L a R U N I T ON/OFF, Entry Correction Keys Data Entry Keys Pressing π automatically enters the value for πBuilding sample sets for statistics or research RandomGenerates random numbers Internally, 0 ModifyFunction to round calculation results Basic Arithmetic Keys, Parentheses Percent $ 125 reduced by 20%…15% of $ 125… Hen $ 125 equals 5% of X , X equals…2500Inverse, Square, Cube Per ation IsplayTo the Power of x, Common Logarithm To the Power of x, Natural Logarithm Factorials = 1 x 2 x 3 x …xnPermutations, Combinations PPL IC AT IO N SRepeat last key operation to return to the previous display Time CalculationOnvert to decimal notation Isplay Fractional Calculations Memory Calculations ~ Enter 0 for M Isplay110 Y 26510 ÖY=Last Answer Memory Trigonometric Functions Arc Trigonometric Functions Hyperbolic Functions Coordinate Conversion Splits data used for dual-variable data input110101100PE 3203OCT 654DEC1011AND 1011AND101=Statistics Function Enters data for statistical calculations Lears data inputS K E Y S F O R 1 -V a R I a B L E S T AT I S T I C S DA T a C O R R E C T I O N Reverse the display order to descending latest first, pressX3= Per ation Isplay X2=N2= Temperature Date S K E Y S F O R 2 -V a R I a B L E S T AT I S T I C S Sharp CORP. MAR