New Perspectives on Microsoft Excel 2010 1st Edition by June Jamrich Parsons ,Dan Oja,Roy Ageloff ,Patrick Carey

Exercise 5

Jan is entering hundreds of temperature values into an Excel worksheet for a climate research project, and she wants to save time on data entry by leaving freezing point values as blanks rather than typing zeroes. Will this cause complications if she later tries to calculate an average temperature from her data values Explain why or why not.