HOW TO USE CALCULATOR TO READ STATISTICAL TABLE; Z-DISTRIBUTION ( POSITIVE & NEGATIVE )

 The different between extraordinary and ordinary is the "extra", as they say. Imagine going into exam with writing materials and calculator while your mates are carrying statistical table or 4-figure table,calculator and writing materials.  I bet the use of calculator will be faster(saves time to focus on other parts) and more accurate, that's what I call "being SMART". That's the beauty of digital world, never for once underestimate it's power. 

Today, I will giving you guys the trick on  HOW TO USE CALCULATOR TO GET Z-Distribution. Instead of using statistical table or 4-figure table, just follow the steps below. 
NB:  The trick works perfectly on Fx-991ES PLUS (NATURAL DISPLAY), It should work on other fx-calculators too. 

Stage 1⇨ ON your calculator 
Step 2  ⇨ Press Mode button 
Step 3  ⇨  Press 3- STAT (to change to STAT mode), you will see 1: 1-VAR 
                                                                                                  2: A + Bx etc (ignore them)

Step 4  ⇨ Go back by Pressing 'AC' button (you'll see 'STAT' on mode part of your calculator, it means you'r in stat mode )

Step 5 ⇨ Press SHIFT + 1 (you'll see options no 1-6)
Step 6 ⇨ press 5 options (distribution)
Step 7 ⇨ press first option (I.e option 1)
"P( )" will display, enter the distribution no you're looking within the "( )", then press "=" to get your answer. 
Works perfectly with both positive and negative distribution.

                                                               Best of God!

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