IQ tests and scores are scaled to have a mean of 100 and a standard deviation of 15. They also are approximately normally distributed. A person scores 125 of the IQ test. (a) What is the probability of a randomly selected person scoring higher than 125? (b) What IQ score puts a person in the 80th percentile?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.