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For each spinner below, calculate the expected value.

  1. A spinner is divided into 2 sections. 30 degrees section is labeled 9 and the other section is labeled 4.

    What is the ratio or likelihood of landing in the angle and getting a ?
    What is the probability of getting a ?

    Refer to the Math Notes box in Lesson 3.2.1.

  1. A spinner with a label of 12.