10 At De Anza College 20 of the students take Finite Mathema

10. At De Anza College, 20% of the students take Finite Mathematics, 30% take Statistics and 10% take both. What percentage of the students take Finite Mathematics or Statistics?

Solution

P(Finite Mathematics) = 0.20,

P( Statistics) = 0.30

P( Statitics and Maths) = 0.10

P( Stats OR Maths) =P( Statistics) + P(Maths) - P( Statitics and Maths) = 0.20+0.30-0.10 = 0.40 = 40%