Probability/The Addition Rule Question 26 The table shows the results of a survey that asked 3203 people whether they wear contavts or glasses.  A person is selected at random from the sample.  Find the probability of each event.

  Contacts Glasses Both Neither Total
Male 64 841 177 456 1538
Female 189 427 368 681 1665
Total 253 1268 545 1137 3203

 

  1. The person wears contacts or glasses.  {#1}
  2. The person is male or wears both contacts and glasses.  {#2}
  3. The person is female or wears neither contacts or glasses.  {#3}
  4. The person is male or does not wear glasses.  {#4}
  5. Are the events "wearing contacts" and "wearing both contacts and glasses" mutually exclusive?  {#5}
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  • 0.475
  • 0.595
  • 0.662
  • 0.752
  • Mutually exclusive.  In this case, a person who wears both contacts and glasses is different than a person who wears only glasses.
    • ]]>         9.0000000 0.3333333 0 add    ]]>