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Spurthi B.
Masters at UIC
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SQL Programming
TutorMe
Question:

Describe COALESCE function.

Spurthi B.
Answer:

COALESCE function returns the first non null expression in the given parameter list. Syntax: COALESCE(par 1, par 2, par3,...)

SAS
TutorMe
Question:

What is the difference between keywords Informat and Format?

Spurthi B.
Answer:

Informat is used to read in the data in a particular format while Format is used to write the data in a specified format

Statistics
TutorMe
Question:

Calculate the Standard deviation and analyze the distribution of the data set S = { 20, 37, 60, 55}

Spurthi B.
Answer:

Standard Deviation = 18.2 and Mean is 43 while range is 40. Implies data is spread evenly

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