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2. IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. What percentage of IQ scores are between

2. IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. What percentage of IQ scores are between 85 and 130? 3. The lowest platelet count in a dataset is 75. (Platelet counts are measured in 1000 cells/AL). Is that value significantly low? Assume that platelet counts have a mean of x = 239.4 and a standard deviation of s - 64.2

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