NCERT Solutions for Class 12 Geography Practical Work In Geography Part I Chapter 4 Use Of Computer In Data Processing And Mapping

What type of graph would you use to represent the following data?

• Line

• Multiple bar

• Pie diagram

• None of the aboue

Districts within a state would be represented in which type of spatial data?

• Points

• Lines

• Polygons

• None of them

Which is the operator that is calculated first in a formula given in a cell of a worksheet?

• +

• -

• /

• x

Function wizard in Excel enables you to

• construct graphs

• carry out mathematical/ statistical operations.

• Draw maps

• None of the above.

What are the functions of different parts of computer?

What are the advantages of using computer over manual methods of data processing and representation?

What is a worksheet?

What is the difference between spatial and non-spatial data ? Explain with example.

What is the three forms of geographical data?

Carry out the following steps using

the given data set:

(a) Enter the given data in a file and store in ‘My Documents' folder

(Name the file as rainfall)

(b) Calculate the standard deviation and mean for the given data set using Function Wizard in Excel spreadsheet

(c) Compute coefficient of variation using the results derived in step (6).

(d) Analyse the results.