1) P($800)=1/8

2)P($400)=1/8

3)yes, all sectors are all the same size giving them the same chance of being landed on by the arrow.

4) gaining at most P($500)=1/2

5) Obtaining less than P($200)=1/8

6) At most P($500)=5/8

7) Spinning spinner twice P($200)=1/64

8) Spinning spinner twice and at lease having up most to $400. P($400)=6/64

9) Spinning spinner twice and a sum of at least $500. P($500)=3/64

10) Spinning spinner twice and having a sum of at least $300. P($300)=3/64

11) Already spun and got $100. P($200)=1/8

12) Already spun and got $800. P($1,000)=7/8

## Comments (1)

## Nathan Wisdom said

at 12:22 am on Jan 9, 2011

Good job!

Your write-up contains complete response with clear, coherent and unambiguous explanation; includes clear and simple diagram, if appropriate; communicates effectively to identified audience; shows understanding of question’s mathematical ideas and processes; identifies all important elements of the question

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