Hello can you please break down these questions for me. I don't know what to do after I calculate the z-score The mean of the distribution is 100 and the SD is 15 What is the probability that a randomly selected student from this population would have an IQ score of 115 or greater? Calculate the z-score Z= (115-100)/15= 1 What is the probability that students have IQ score of 130 or below? What is the probability that students have IQ score of between 85 and 115?

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