1.9. Summary

Try these first

1. 1.

   What is a random experiment?

   Hint

   Think about experiments that involve chance, like coin flips.

2. 2.

   List the two outcomes of a coin toss.

   Hint

   What can happen when you flip a coin?

3. 3.

   What defines a random experiment?

   • Outcomes can be predicted
   • Outcomes cannot be predicted
   • Outcomes are always the same

   Hint

   Think about the word 'random.'

4. 4.

   T or F: A sample space includes only favorable outcomes.

   • True
   • False

   Hint

   What outcomes are included in a total set?

5. 5.

   A light bulb’s lifetime is modeled as a continuous random variable. If the expected lifetime is 1000 hours, describe how you might analyze the probability of a bulb lasting less than 800 hours.

   Hint

   Consider how distributions define probabilities over ranges.

6. 6.

   In an experiment of rolling two dice, compute the probability of getting a sum of 7. Explain your methodology.

   Hint

   Think about combining different outcome pairs.