lect.6 excel2010

1. Microsoft Excel
Microsoft Office 2010-Illustrated
By Dr. Zahraa Fadhil Muhsin
Uruk University
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2. What is Data?
 Data is an existing information/knowledge represented
or coded in some form suitable for better usage
or processing.
 Data is a set of values of qualitative or quantitative
variables.
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3. Quantitative Vs Qualitative Data
 Quantitative data are anything that can be
expressed as a number, or quantified.
 Qualitative data is a categorical measurement
expressed not in terms of numbers, but rather by
means of a natural language description.
For example: favorite color = "blue"
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4. Primary and Secondary Data
 Primary Data are collected by the researcher.
 Secondary data collected by someone else and
have already been passed through the statistical
process.
 Methods of Collecting Data
 The methods of collecting data mainly refers to
collecting primary data.
 As secondary data are already available, we have to
carefully choose the sources , relevancy of data and
reliability.
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5. Methods of Collecting
Primary Data
There are several methods of collecting primary data.
 Observation
 Interview
 Questionnaire
 Tests,
 Surveys,
 Document analysis
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6. Sort data in a range or table
 Sorting data is an integral part of data analysis. You might
want to
 arrange a list of names in alphabetical order,
 compile a list of product inventory levels from highest to
lowest,
 order rows by colors or icons.
 Sorting data helps you
 quickly visualize and understand your data better,
 organize and find the data that you want,
 You can sort data by
 text (A to Z or Z to A),
 numbers (smallest to largest or largest to smallest),
 dates and times (oldest to newest and newest to oldest)
 in one or more columns.
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7. Sort text
 Select a cell in the column you want to sort.
 Data tab Editing group, do one of the following:
 To quick sort in ascending order,
click (Sort A to Z).
 To quick sort in descending order,
click (Sort Z to A).
Remove any leading spaces In some cases, data
imported from another application might have leading
spaces inserted before data. Remove the leading spaces
before you sort the data.
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8. Sort numbers
 Select a cell in the column you want to sort.
 On the Data tab  Editing group  CustomSort :
 To sort from low to high, click (Sort Smallest to
Largest).
 To sort from high to low, click (Sort Largest to
Smallest).
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9. COUNT function
 The COUNT function counts the number of cells that
contain numbers. For example count the numbers in
the range D8:D15: =COUNT(D8:D15). (8)
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10. SQRT function
 Returns a positive square root.
 SQRT(number) The SQRT function syntax has the
following arguments:
 Number Required. The number for which you want
the square root.
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11. Copy a formula (relative)
 Copying a formula: When you copy a formula,
relative cell references will change.
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Set the pointer to the
cell that you want to
copy its formula
Drag this to down cells to
copy formula with
relative
cell addressing

12. Move a formula (absolute)
 Moving a formula: When you move a formula, the
cell references within the formula do not change no
matter what type of cell reference that you use.
 Absolute Cell References
 The row and column references do not change when you
copy the formula because the reference is to an actual
cell address. An absolute reference uses two dollar signs
in its address: one for the column letter and one for the
row number (for example, $A$5).
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13. Absolute Cell References $
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Drag this to down
pointer(+)

14. Absolute & relative
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