Why are linear transformations of data used?

• Sometimes data might be very large or very small
• You can apply a?linear transformation?to the data to make the values more manageable
  • You may have heard this referred to as:
    • Effects of constant changes
    • Linear coding
• Linear transformations of data can?affect the statistical measures

How is the mean affected by a linear transformation of data?

How is the variance and standard deviation affected by a linear transformation of data?