*1* how to download books from Google
 Make sure your Android phone or tablet is connected to WiFi.

Open the Google Play Books app .

Tap the book you want to download. You can also tap
More. Download to save the book for offline reading. Once
the book is saved to your device, a Downloaded icon will
appear .
*2* how to search research papers and scholarly articles
 From the Healey Library homepage, type your keywords into
the UMBrella search box. ...

Then select Articles under Material Type.

Use the Availability filter to: ...

Click on an article title that interests you.

Look under Find Online to see how you can access
the article's full text.
*3* what r cumulative frequency, frequency distribution and
relative frequency?
Cumulative frequency analysis is the analysis of the frequency
of occurrence of values of a phenomenon less than a reference
value. The phenomenon may be time- or space-dependent.
Cumulative frequency is also called frequency of non-
exceedance.
Frequency distribution: A mathematical function showing the
number of instances in which a variable takes each of its
possible values.
A relative frequency is the fraction or proportion of times an
answer occurs. To find the relative frequencies, divide
each frequency by the total number of students in the sample
*4* what is needed to make a graph
 A title which describes the experiment. ...

The graph should fill the space allotted for the graph. ...

Each axis should be labeled with the quantity being
measured and the units of
measurement. ...

Each data point should be plotted in the proper position. ...

A line of best fit.
*5* uses of these graphs and charts
Graphs are a common method to visually illustrate
relationships in the data. The purpose of a graph is to present
data that are too numerous or complicated to be described
adequately in the text and in less space.
The main functions of a chart are to display data and invite
further exploration of a topic. Charts are used in situations
where a simple
table won't adequately demonstrate important relationships or
patterns between data points.
*6* differences between graphs and charts
Charts present information in the form of graphs, diagrams or
tables. Graphs show the mathematical
relationship between sets of data. Graphs are one type
of chart, but not the only type of chart; in other words,
all graphs are charts, but not all charts are graphs.
*7* what's the difference between histogram and historigram?
In histogram numerical data is represented in
the form of vertical bars. Each of the bars represents the
frequency. On the other
hand, historigram is a time series graph
wherein different values in the series are represented against
time