Use the figure to answer the questions that follow. (a) What is μ? (b) What is Ï?

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Use the figure to answer the questions that follow.

50 60 70

(a) What is μ?
(b) What is σ?
(c) Suppose that the area under the normal curve to the right of x = 75 is 0.0668. Provide two interpretations for this area.
(d) Suppose that the area under the normal curve between x = 50 and x = 75 is 0.7745. Provide two interpretations for this area.

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