Question: Find the expected value for the random variable. z 9 12 15 18 21 P(z) 0.14 0.25 0.37 0.17 0.07 Question content area bottom Part

Find the expected value for the random variable. z 9 12 15 18 21 P(z) 0.14 0.25 0.37 0.17 0.07 Question content area bottom Part 1 E(z)equals enter your response here (Type an integer or a decimal.)

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