ONLY ANSWER IF YOU HAVE SOLUTION OR ELSE U WILL BE REPORTED! In a group of students, 50% of the students were taking statistics subject, 30% economics and 10% both the subjects. What is the probability that a student was taking neither statistics nor
economics?
a) 30% b) 90%
c) 70% d) None of these

Solution with som explanation

a) 30%

Step-by-step explanation:

50% of the students were taking statistics subject, 30% economics and 10% both the subjects.

The probability a student takes only statistics = 50% - 10% = 40%

The probability a student takes only economics = 30% - 10% = 20%

The probability a student was taking neither statistics nor  economics = 100% - (40% + 20% + 10%)

The probability a student was taking neither statistics nor  economics = 30%

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