mean

• the sum of all the values divided by the number of values.-mean
• discrete data:

  1.Add all the values.

  2.Divide by the number of values.
• label the formula:

  A) sigma = sum of

  B) number of data values

  C) data values

  
• frequency table (not grouped):

  1.Add an extra column to the table and label as f x x

  2.Multiply the values in the first two columns for each row and write the answer in the new third column.

  3.Add up the third column-this gives you the total (∑ƒx)

  4.Divide answer to 3 by answer to 4.