Hi, i wanna ask question of probability.

Question

anonymous · Answer

Probability Question:

Out of 77 students in the MBA program, 39 students are taking stats class, 45 taking finance class and 21 taking both stats and finance class. if a student is chosen at random find the probability of that she or he is

a) Taking either stats or finance class
b) Is not taking stats class.

plz help me urgently and let me have answer

psymon · Answer

You just want the answer or should we go over it?

anonymous · Answer

Dear I need answer of of the both with calculation to show my teacher

psymon · Answer

Do you want to understand how to do it, though, or you just want us to give the answers? Just making sure :/

anonymous · Answer

plz explain how to do this... it will help me in next term exam

psymon · Answer

Well, probability is the amount of successes divided by the amount of total possibilities. So because there are 77 students, the denominator will always be 77 for this problem. In part a, your "successes" will be people taking either stats or finance. So The answer to a
is  (stats or finance) / 77 

Kind of make sense so far?

anonymous · Answer

m sorry i dont understand

anonymous · Answer

We have to draw a venn diagram here

anonymous · Answer

Please let me have both answers of a) and b) if u can with explanation

anonymous · Answer

K

psymon · Answer

Yeah, if you dont understand me then better Udit does it, Ill only confuse you.

anonymous · Answer

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