Question: The plot to the right shown the probability function of a random variable Z. Estimate the needed probabilities from the information shown in the plot.

The plot to the right shown the probability function of a random variable Z.
Estimate the needed probabilities from the information shown in the plot. Is the E(z) positive, negative, or close to zero?

Ap(x) 0.30- 0.25- 0.20- 0.15- 0.10- 0.05- х 0.00- -3 -2 -1 3 2]

Choose the correct answer below.
Close to zero
Positive
Negative

Ap(x) 0.30- 0.25- 0.20- 0.15- 0.10- 0.05- 0.00- -3 -2 -1 3 2]

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