Mathematics, 23.12.2020 18:20 mucciak2854

The table below shows the probability distribution of student ages in a high school with 1500 students. What is the expected value for the age of a randomly chosen student? Age: 13 14 15 16 17 18
Prob: 0.01 0.25 0.27 0.30 0.16 0.01

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