Scores on a certification exam are approximately Normal with…
Scores on a certification exam are approximately Normal with a mean of 75 and a standard deviation of 8, N(75, 8). The shaded region below shows scores above 85. (2 points) Using the 68-95-99.7 Rule (without a z-table), between what two scores would approximately 95% of exam takers fall?
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Scores on a certification exam are approximately Normal with a mean of 75 and a standard deviation of 8, N(75, 8). The shaded region below shows scores above 85. Using the z-table, find the probability that a randomly selected exam taker scores above 85. Round to one decimal place.
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