Statistical&Operations& 1 - Sight Enhancement Systems SciPlus-2500 User Manual

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Statistical&Operations&
The!SciPlusB2500!performs!statistical!operations!on!a!table!of!up!to!99!entries.!!Note!that!most!statistical!
operations!with!the!SciPlusB2500!use!the!soft!keys!A!–!D!.!
!
KEY& NAME&
Add!Data!Point!in!
+
Stats!Register!
!
Display!Statistics!
+
Soft!Keys!
!
Soft!keys!A!B!D!are!used!to!perform!various!statistical!operations.!!Statistics!soft!keys!are!shown!on!the!
opposite!page.!!Note!that!!μ!!Σ(x)!!!Σ(x
Page!16!of!35!
DESCRIPTION&
!Adds!the!current!value!into!the!statistics!table.!!!If!pressed!at!the!end!
of!an!expression,!the!expression!is!solved,!and!the!result!added.!!Note!
that!if!a!value!already!exists!in!the!table,!it!will!be!added!a!second!time.!
!
e.g.:!!2 Σ+ 3 Σ+ 5 Σ+ 3
This!key!causes!the!statistics!soft!keys!to!be!displayed.!!Note!that!there!
are! two! sets.! ! Pressing! this!
second!set!of!soft!keys.!!A!third!time!will!disable!the!soft!keys.!!
2 2
)!!!σ!!!σ !!!and!!!M!!can!all!be!used!in!expressions.!
!
Σ+!!will!create!a!table!(2,!3,!5,!3)!
2
nd
Σ! ! a! second! time! will! bring! up! the!
version!1.2!