Question about Texas Instruments TI-84 Plus Calculator

# How to calculate quartiles - Texas Instruments TI-84 Plus Calculator

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After storing the statistical data press VARS 5 to select the statistics results. Select PTS and then scroll down to see Q1, Med, and Q3 for the first, second, and third quartile points.

Posted on Nov 04, 2012

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## Related Questions:

### How to find the answer to quartiles

Hi,

Step 1 - put the numbers in order from lowest to highest
Step 2 - find the median - 2nd Quartile
Step 3 - find the 1st and 3rd Quartiles

Step 1 - 90 96 100 114 114 120 121
Step 2 - 2nd Quartile, in this case, is the fourth number from either end, since there are 7 numbers - 114
Step 3 - 1st Quartile - the midpoint between 96 and 100. (96+100)/2 = 98
Step 4 - 3rd Quartile - the midpoint between 114 and 120. (114+120)/2 = 117

Good luck.

Let me know if you have any questions.

Paul
Quartiles

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### How to do plot and whiskers in a casio fx-115ES calculator

This is not a graphing calculator, so you cannot perform a box and whiskers plot.
If you know how to find the Median(=Q2), the lower (Q1), and upper (Q3) quartiles, you can draw your box and whiskers plot on a piece of paper.

Jul 21, 2014 | Casio FX-115ES Scientific Calculator

### Quartile

The first quartile is 4, the second quartile (median) is 8, and the third quartile is 12.

Apr 23, 2014 | Office Equipment & Supplies

### If you are ranked in the first quartile is that better than being ranked on fourth quartile?

That depends on which way the rankings go. If you're looking at exam scores where higher scores are better then it's better to be in the fourth quartile. If you're looking at race times where faster times are better then it's better to be in the first quartile.

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### Five number summary

The distribution of the ordered observation is divided into five summaries. That is, minimum, first quartile, median, thrid quartile, and maximum.

Formula:
Minimum = first element of set, First Quartile = (n+1)/4, Median = (n+1)/2, Third Quartile = 3(n+1)/4 and Maximum =last element of set.

May 08, 2012 | Texas Instruments TI-30 XIIS Calculator

### How do i sort out random numbers?

Here is a sequence of screen captures that illustrates how you do 1-var statistics. I believe it is clear enough.
To sort tap EDIT and select Sort (ascending)
To perform 1-var stats Tap CALC and select one-variable.
Specify the list where the data is (list1), if you have repeated entries you should create a frequency list ( in L2). If no frequency list, frequency is set to 1.
Once you get the stats you can scroll down to read Q1,Q2, Median, etc.

Apr 13, 2012 | Casio ClassPad 300 Calculator

### Online calculator that you don't have to buy

On Windows based computers you already have a calculator. Look for it under Start>All programs>Accessories>.

Mar 13, 2012 | Casio Office Equipment & Supplies

### I have filled my data but i cant get my median, upper quartile, lower quartile, top and low help??

Once you have filled a list, you can sort it.
As on the following screen press F6 to SET the graph type.

Use the F6 key to cycle through the options.
Press the keys to select the appropriate TAB at the
bottom of the screen. Select Histogram or BOX

Pressing the 1-Var tab at the bottom displays the statistics.

Press SHIFT F1 to trace the graph. Use right or left arrow
to display Xmin, Q1, Med, Q3, Xmax

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