Jhustine receives 84 or 85 as his grade on his four major subjects. Construct the sampling distribution of his mean grade. Write your answer on the space provided. 1. What is the probability that his mean grade is lower than 852 2. Whal is Ihe probabilily that his mean grade is greater than 84.25? 3. What is the probability that his mean grade is 84.75? 4. What is the probability that his mean grade is between 84 and 84.502 5. What is the probabilily that his mean grade is 85? f(x)

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