1. In June 2008 Parade magazine posed the following question: "Should drivers be. banned from using all cell phones?" Readers were encouraged to vote online at
www. parade. com. The July 13, 2008, issue of Parade reported the results: 2407
(85%) said "Yes" and 410 (15%) said “No."

(a) what type if sample did the parade survey obtain?
(b) explain why this sampling method is biased.
(c) is 85% likely to be greater than or less than the percentage of all adults who believe that cell-phone use while driving should be banned? Why?