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An investors association's on$-$line discount broker survey polls members on their experiences with electronic trades handled by discount brokers. As part of the survey, members their satisfaction with the trade price and the speed of execution, as well as provide an overall satisfaction rating. Possible responses $($scores$)$ were no opinion $(0),$ unsatisfied $(1)(2),$ satisfied $(3),$ and very satisfied $(4).$ For each broker, summary scores were computed by computing a weighted average of the scores provided by each respondent. A portio follow. $($Let $x_1$ represent satisfaction with trade price, $x_2$ represent satisfaction with speed of execution, and $y$ represent overall satisfaction with electronic trades.$)$

$\backslash$table$[[$Brokerage$,$Satisfaction with Trade Price,Satisfaction with Speed of Execution,Overall Satisfaction with Electronic Trades$],[$Brokerage $1,3\mathrm{.}3,3\mathrm{.}3,3\mathrm{.}4],[$Brokerage $2,3\mathrm{.}1,3\mathrm{.}4,3\mathrm{.}5],[$Brokerage $3,3\mathrm{.}2,3\mathrm{.}5,3\mathrm{.}9],[$Brokerage $4,3\mathrm{.}0,3\mathrm{.}7,3\mathrm{.}6],[$Brokerage $5,3\mathrm{.}0,3\mathrm{.}1,2\mathrm{.}8],[$Brokerage $6,2\mathrm{.}4,3\mathrm{.}1,2\mathrm{.}6],[$Brokerage $7,2\mathrm{.}7,3\mathrm{.}7,2\mathrm{.}9],[$Brokerage $8,2\mathrm{.}3,3\mathrm{.}7,3\mathrm{.}7]]$