1nbsp the average score on the stats midterm was 75 points, Ask an Expert

Statistics

1. The average score on the Stats midterm was 75 points with a standard deviation of 5 points, and Gregor's z-score was How many points did he score?

2. People with z-scores greater than 2.5 on an IQ test are sometimes classified as geniuses. If IQ test scores have a mean of 100 and a standard deviation of 16 points, what IQ score do you need to be considered a genius?

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