Data Analysis, Statistics & Probability
The 9 Most Common Mistakes
As you prepare, keep the following common mistakes in mind. Some are mistakes to avoid when taking the actual test. Others are mistakes to avoid during your preparation for the test.
  1. Forgetting the basic formulas that are associated with DS&P. (Know these formulas!)
  2. Forgetting to look for the hidden, unstated pieces of the puzzle that hold the key to an item.
  3. Trying to work an item in your head instead of writing your work down.
  4. Not picking the answer the item asks for. Are you falling for a distractor?
  5. Failing to work through the practice sets in this book—reading the book is not enough.
  6. Failing to practice the step methods on every practice item. You need these methods when the answer isn’t obvious to you.
  7. Refusing to guess after eliminating one or more answer choices.
  8. Answering every item in order.
  9. Rushing through a set instead of thinking each item through.
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