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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

Respuesta :

Answer:

15

Step-by-step explanation:

Expected value =prob(age)

(13*0.01)+(14*0.25)+(15*0.27)+(16*0.30)+(17*0.16)+(18*0.01)=15.38

round off to get 15

Answer:15.35

Step-by-step explanation: