BONUS: A professor knows that her statistics students' final exam scores have a mean of 76 and a standard deviation of 10.6. In his class, an "A" is any exam score of 90 or higher. This quarter she has 24 students in her class. What is the probability that 4 students or more will score an "A" on the final exam? prob =
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First, we need to find the z-score for a score of 90. The z-score is calculated as: z = (X - μ) / σ where X is the score, μ is the mean, and σ is the standard deviation. Show more…
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