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Statistics and Probability 1. The IQs of Grade 1 1 students in MAKATAO NATIONAL HIGH SCHOOL were measured and found to be normally distributed with

Statistics and Probability

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1. The IQs of Grade 1 1 students in MAKATAO NATIONAL HIGH SCHOOL were measured and found to be normally distributed with a mean of 98 and a standard deviation of $ a. If a student from the school is chosen at random, what is the probability that his score is higher than 1 10? b. What is the probability that a random sample of 4 students will have an average of above 1 10

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