chocolate-chip chooky Posted July 3, 2019 Share Posted July 3, 2019 My 13yr old has done this problem and is out by a tiny bit. We can't decide whether this tiny bit is significant or not. We have answers but not a solution manual, unfortunately. Is anyone here willing to give it a go and see what you get? The chance of winning the Lotto first division is 1/8145060. How many times would you need to enter to ensure a 50% chance of winning first division at least once? Thank you 🙂 Quote Link to comment Share on other sites More sharing options...
daijobu Posted July 3, 2019 Share Posted July 3, 2019 Did I get it right? 1 Quote Link to comment Share on other sites More sharing options...
chocolate-chip chooky Posted July 3, 2019 Author Share Posted July 3, 2019 Thank you @daijobu Your answer is exactly the same as my daughter's answer. The answer in the book is 5 645 717. Thank you so much for going to that effort for us. It is really appreciated 🌻 2 Quote Link to comment Share on other sites More sharing options...
chocolate-chip chooky Posted July 3, 2019 Author Share Posted July 3, 2019 Note to self: Don't enter the lotto! 😄 3 Quote Link to comment Share on other sites More sharing options...
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