Events on a probability scale

Events on a probability scale

Secondary 2
TGM Original Questions

A bag contains 30 balls: 12 orange, 11 purple and 7 green. Define event \(A\): green; \(B\): orange or purple; \(C\): not orange; \(D\): purple.

  1. Find \(P(A),P(B),P(C),P(D)\).
  2. Mark A, B, C and D on the probability scale.

Solution:

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Answer:\(P(A)=7/30, P(B)=23/30, P(C)=3/5, P(D)=11/30\); order A, D, C, B.

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