Answer:
The bookie is Dr. Wexler, the bomber is Angela and the mistake is Sydelle Pulaski.
Step-by-step explanation:
"The Westing Game" is a mystery book, where we learn about a mysterious murder that happened in Wisconsin, which needs to be solved. This mystery involves a dangerous game and several codenames that make the plot even more mysterious and engaging.
Within this context, in the game, the bookie, a person who does illegal activities is Dr. Wexler, a highly respected podiatrist, who proved to be a man of integrity and within the law. The bomber, was his daughter, Angela, a very quiet, shy and quiet girl, who no one would suspect that she would be involved in this type of activity. Finally the "mistake" is Sydelle Pulaski who participates in the game only for personal attention and comfort.