Assume that adults have 1Q scores that are normally distributed with a mean of 100.4 and a standard deviation 21.1. Find the first quartile Q,, which is the IQ score separating the bottom 25% from the top 75% (Hint Draw a graph ) The first quartile is (Type an integer or decimal rounded to one decimal place as needed.)

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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.