Question: Probabilites Probabilities (6 points) For the following problems, you should assume all populations are normally distributed. 18. What is the probability of randomly selecting an

Probabilites

Probabilities (6 points) For the following problems, you should assume all populations are normally distributed. 18. What is the probability of randomly selecting an individual from a normal distribution with a z-score less than 0? (1 point) 19. What proportion of a normal distribution consists of z-scores greater than z = 1.67? (1 point) 20. What z-score separates the top 33% of the data from the rest? (1 point) 21. What z-scores separate the middle 80% of the data from the rest? (1 points) 22. What is the probability of selecting a z-score between z = 0 and z = 0.5? (2 points)

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