A poll was conducted among 250 residents of a certain city regarding tougher gun-control laws. The results of the poll are shown in the table. (Enter your answers to three decimal places.)   Own Only a   Handgun   Own   Only a   Rifle Own a Handgun   and a Rifle   Own   Neither     Total Favor Tougher Laws 0     12     0         138   150 Oppose Tougher Laws   55     7     26         0   88 No Opinion 0     0     0         12   12 Total 55     19     26         150   250 (a) If one of the participants is selected at random, what is the probability that he or she favors tougher gun-control laws?

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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.