A jar contains 5 blue marbles, 8 red marbles, 4 white marbles, and 3 purple marbles. Suppose you pick a marble at random without looking. Find the probability of each event. Write your answer as a fraction in simplest form. P(not white)?


1 Answers

Luiz Bencio Profile
Luiz Bencio answered

Here are the steps:

  1. Find the total number of marbles. This is equal to 5+8+4+3=20 marbles in all.
  2. Probability of getting blue=number of blue marbles/total number of marbles=5/20=1/4
  3. Following same formula as on top, Red=8/20=2/5
  4. White=4/20=1/5
  5. Purple=3/20
  6. Probability of getting a marble NOT white. Add all marbles except white/total number of marbles=16 marbles/20 marbles=4/5
I hope this helped :)

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