تم الحل ✓
categoryالرياضيات
schoolبكالوريوس
event_available2026-07-15
السؤال
Transcribed Image Text:
The Ontario Lottery Group has recently started allowing betting on the outcomes of games of the Canadian
Calvinball League. It costs $10 to purchase a ticket, and you must successfully determine the outcome of the night's
games. Tonight the games are
Oakville Owlbears
VS
Mississauga Mind Flayers
Brampton Beholders Whitby Wyverns
VS
Guelph Githyanki
VS
Kitchener Kuo-Toa
You will win 3* - 1 dollars for correctly determining the outcome of k matches.
Question 1 Assuming all teams are equally matched, what are your expected net winnings? Note that your net
winnings are the difference between what you paid to play and what you won. Hence your winnings can be negative
if you lose money.
Question 2 Per the rules of Calvinball, the team whose name occurs first alphabetically has an advantage and is
twice as likely to win their game. Assuming you bet on the more likely winner in each game, what are your expected
value net winnings?
Question 3 You have a friend who plays for the Whitby Wyverns. The team found a ringer from the European
leagues, and the likelihood that the Wyverns win their next game is now 100%. Assuming that you bet for the
Wyverns and that the other two games still favour the alphabetical team, what are your expected net winnings?
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