# 3.7 Bivariate descriptive statistics: using spreadsheets to view

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Google Spreadsheet – You can create pivot tables in Google Spreadsheet as you did for univariate data however you have the same limitations, you cannot create row or column percentages unless you create them using formula (which you can do!) The only difference here is that you will again highlight two columns of data that you want to look at in the pivot table and select one for the rows and one for the columns. See the image below. Go back to Sampling and Data to get more details on how to find the Report Editor.

## Bar graphs (stacked and side by side):

In both Excel and Google Spreadsheet, it is very easy to create side by side or stacked bar graphs directly from your contingency tables. Highlight the fields on your contingency table (note do not highlight the totals column or any of the cell highlighted “blue”) and then go to your insert tab and insert a chart. See the fields highlighted (the area highlighted grey with a green border around it) in the figure below.

You have a choice of side by side or stacked. In Excel you can use your percentages. In Google Spreadsheet you will need to create your percentages if you want them in your bar graphs. Below is output from Excel and Google Spreadsheet. Both spreadsheet programs give you many options in the design and format modes. In Excel you can access the design you want from the Change Chart Type field on the Design Tab. In Google Spreadsheet you change chart types in the Chart editor under the start tab or the charts tab. Explore . . . it’s fun.

## Pie charts:

Pie charts are created the same way as bar graphs in Excel and in Google Spreadsheets using the pivot table . . . however you will need to change the order of the columns to create multiple pie charts. If you use the sort function in the PivotTable field (highlighted in green below) the field at the top of the PivotChart Fields, mouse over the down arrow, a popup menu will appear, pick a different sort option (a to z, z to a, or more sort options), and then the order of your columns will change. See Image of the popup menu below.

To make multiple pie charts you will need to copy the pie chart as a picture and paste it on your spreadsheet before you pick an alternative sort method. If you do not copy the pie chart as a picture, when you sort the data, you graph will change (it remains dynamic). Same is true when creating pie charts in Google Spreadsheet.

## Optional classroom exercise for categorical –categorical data:

At your computer, try this exercise: (1) Open the file, Statistics First Day of Class Survey that you worked on previously (2) open the file in Google Spreadsheet or Excel; (3) create a new worksheet tab and label it Bivariate Graphs for Categorical Data; (4) pick two column of data that are categorical and has been “cleaned” and create a contingency table, side by side bar graphs and side by side pie graphs with all the appropriate labels; And (5) save the file again and post in the appropriate Moodle assignment.

## Categorical - numerical

When working with categorical and numerical data and Excel or Google Spreadsheet, one of the best first steps is again, to copy the columns of data from your working data sheet to a new spreadsheet, and label the spreadsheet. The next step will be to sort the data. You must be sure to sort both columns of data together. The data from the categorical column and the numerical column are related. They are a pair of data from the same source. In examining categorical – numerical data we want to know what is the relationship between the two responses, so we must keep the two columns together.

where we get a research paper on Nano chemistry....?
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
what about nanotechnology for water purification
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
why we need to study biomolecules, molecular biology in nanotechnology?
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
why?
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
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