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April 18, 2014

April 18, 2014

Posted by **Jen** on Wednesday, July 20, 2011 at 10:08am.

Grade Number

A 45

B 180

C 110

D 95

F 65

I 5

If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she receives at least a B. I think it's 1.7777 ??

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**bobpursley**, Wednesday, July 20, 2011 at 10:37amSince when can a probabliity be greater then one?

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**Jen**, Wednesday, July 20, 2011 at 10:47amis it 180/500 = 2.7777???

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**bobpursley**, Wednesday, July 20, 2011 at 10:49amJen, think. How can 180/500 be more than one.

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**Ms. Sue**, Wednesday, July 20, 2011 at 10:49amJen!! 2.777 is also greater than one!

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**bobpursley**, Wednesday, July 20, 2011 at 10:53amProb of at least B is = prob of A +prob of B= (45+180)/totalofallgrades

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**Jen**, Wednesday, July 20, 2011 at 11:05amoooooooh i totally messed up!!! sorry i did 500/180 instead of 180/500....so it would be 0.36....sorry :(

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**Ms. Sue**, Wednesday, July 20, 2011 at 11:58amNo.

You forgot to include the A grades.

Bobpursley explained that above.

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**Jen**, Wednesday, July 20, 2011 at 12:11pm225/500 = 0.45??

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**Ms. Sue**, Wednesday, July 20, 2011 at 12:14pmRight.

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**Jen**, Wednesday, July 20, 2011 at 1:39pmgreat! i get it...thank u :)

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**Tychiana Murray**, Monday, July 25, 2011 at 4:21pmthe answer would be D 95

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