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November 28, 2014

November 28, 2014

Posted by **Emma** on Thursday, October 27, 2011 at 2:14pm.

a. taking just computer science

b. taking mathematics or computer science, but not both

c. taking computer science

d. not taking mathematics

e. taking mathematics, given that the student was taking computer science

f. taking computer science, given that the student was taking mathematics

g. taking mathematics, given that the student was taking computer science or mathematics

h. taking computer science, given that the student was not taking mathematics

i. not taking mathematics, given that the student was not taking computer science

- probability -
**PsyDAG**, Friday, October 28, 2011 at 11:48amIt would help if you proofread your questions before you posted them. You have not indicated that anybody is taking computer science or both.

- probability -
**Lee**, Monday, November 19, 2012 at 12:14pmThis is exactly how the question is written on the test. Does that mean it can't be answered since we don't have part of the problem?

- probability -
**Luke**, Wednesday, June 5, 2013 at 5:04pmit's possible. You know 160 are taking math and OF the 160 90 are ONLY taking math leaving 70 taking both. 90+70(160) + 50 = 210. so 40 are taking c.s. but not math

90-math

70-math & c.s.

40-c.s.

50-neither

the rest is a:40/250, b:(90+40)/250, C:40/250, d:(50+40)/250

e gets tricky now is probability of students taking math out of the pool of (70+40)(the number taking c.s.) so 70/110

etc. etc.

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