SOLUTION: In a statistics class there 30 females and 20 males; 18 of the females are freshmen and 12 of the males are sophomores. If a student is selected at random, find the probability of

Algebra.Com
Question 1008118: In a statistics class there 30 females and 20 males; 18 of the females are freshmen and 12 of the males are sophomores. If a student is selected at random, find the probability of selecting a male or a freshman.
Answer by fractalier(6550)   (Show Source): You can put this solution on YOUR website!
P(male or fresh) = P(male) + P(fresh) - P(male)*P(fresh)
= 20/50 + 26/50 - (20/50)(26/50) = .712 = 71.2 %

RELATED QUESTIONS

In a statistics class there are 30 females and 20 males; 18 of the females are freshmen... (answered by fractalier)
Can someone help me out with this problem: Sociology 410 has 55 more males than females.... (answered by venugopalramana)
There are 10 females and 20 males in a history class. If the females achieved an average... (answered by ankor@dixie-net.com)
there are 13 males and 12 females in a calss, how many more males are there in the class... (answered by josmiceli)
Mrs. DiNardo's physics class has 115 students, classified by academic year and gender, as (answered by greenestamps,stanbon)
If there are 78 females in a restaruant and 54 males what is the percentage of... (answered by vleith)
there are 14 females and 9 males in the doctors surgery what is the ratio of females to... (answered by checkley79)
There are 10 females and 20 males in the first aid course. If the females achieved an... (answered by josmiceli)
There are 10 females and 20 males in the first aid course. If the females achieved an... (answered by rfer)