Sharp V/R 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

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

(Data X raised to the second power)

544.1

(Sum of the product of data X and dataY)

79

(Sum of data Y)

863

(DataY raised to the second power)

28

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Contents Sciientiifiic Calculator Operatiionguiide N TEN TS E Y L AY O U T Ow to Ope ra teDI S P L AY F O R M AT a N D DI S P L AY P AT T E R NX P O N E N T DI S P L AY Adians R a D is shown at the top of the display N G U L a R U N I TON/OFF, Entry Correction Keys Pressing π automatically enters the value for π Data Entry KeysGenerates random numbers RandomFunction to round calculation results ModifyBasic Arithmetic Keys, Parentheses Percent Xth Root of y To the Power of x, Common Logarithm To the Power of x, Natural Logarithm Factorials PPL IC AT IO N S Permutations, Combinations24 28 Time CalculationFractional Calculations Memory Calculations ~ Last Answer Memory Trigonometric Functions Arc Trigonometric Functions Hyperbolic Functions Coordinate Conversion DAT a I N P U T a N D E R a S E Statistics FunctionS 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 Data total up to this point 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
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