We appreciate your visit to Assume that adults have IQ scores that are normally distributed with a mean of 98 3 and a standard deviation of 18 2 Find the. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
The the first quartile Q1, which is the IQ score separating the bottom 25% from the top 75% is P(x A quartile is a type of quantile which divides the number of data points into four parts, or quarters, of more-or-less equal size Using table, z score=-0.67 (x-mean)/sd=-0.67 (x-98.3)/18.2=-0.67 Simplify the expression by collecting like terms x-98.3=18.2*(-0.67) x-98.3=-12.192 x=86.106 Therefore, the first quartile is 86.106 Learn more about quartiles on https://brainly.com/question/24329548 #SPJ1How to calculate the first quartile?
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