In a recent study on world​ happiness, participants were asked to evaluate their current lives on a scale from 0 to​ 10, where 0 represents the worst possible life and 10 represents the best possible life. The responses were normally​ distributed, with a mean of 4.7 and a standard deviation of 2.6. Answer parts ​(a)–​(d) below. ​(a) Find the probability that a randomly selected study​ participant's response was less than 4

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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.