Homework Help: Statistics

Posted by Jennifer on Saturday, September 19, 2009 at 8:37pm.

The Econ Dpt final has 30 questions that are multiple choice. There are 5 possible answers. If you guessed the answers to all the questions, how many would you expect to get right. Choices are 6, 7.5, 7?

Statistics - Ms. Sue, Saturday, September 19, 2009 at 8:43pm
You have 20% chance of getting each answer right.

0.2 * 30 = ?

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