Thursday

April 17, 2014

April 17, 2014

Posted by **bri** on Sunday, January 6, 2013 at 3:03pm.

a. let A be the event "your teacher wins" find P(A).

B. let b be the event "you get a 3 on your first roll.+ Find P( A u B).

- statistics -
**Reiny**, Sunday, January 6, 2013 at 3:25pmConsider the outcomes as ordered pairs of the form

(teacher, student)

we could list them as follows

11 12 13 14 15 16

21 22 23 24 25 26

...

71 72 73 74 75 76

81 82 83 84 85 86

there are 48 outcomes

15 have teacher < student

6 have teacher = student

27 have teacher > student

P(teacher wins) = 27/48 = 9/16

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