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Simple probability

You might need: Calculator


Jake is going to call one person from his contacts at random. He has 30 total contacts. 16 of those contacts are people he met at school.
What is P(call a person from school)?
If necessary, round your answer to 2 decimal places.
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a proper fraction, like 1/2 or 6/10
  • an improper fraction, like 10/7 or 14/8
  • a mixed number, like 1 3/4
  • a percent, like 12.34%