Question 422396
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Statistics (and possibly accounting) : 200


Statistics And Accounting:  50


Statistics only:  200 minus 50 = 150.


Accounting only:  250


Total Business students:  1000.


The probability of anything is the number of ways it can happen that you would consider a success divided by the number of ways that it can happen that are either a success or a failure.


For your first problem, the number of ways that it can happen is the total number of business students, namely 1000.  That's your denominator.  The number of ways that it can happen and be a success is the number of statistics only students, i.e. 150 plus the number of accounting only students, namely 250, or a total of 400.  That's your numerator.


So the answer to the first one is 400 divided by 1000 or 40%.


You should be able to handle the rest of them.  Be careful about how you calculate your denominator in part 4.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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