If Devaughn earns a C in science, a D in math, and an A in English, what is his GPA?
O A. 3.66
O B. 2.00
O C. 2.33
O D. 2.66

Arecent survey shows that the probability of a college student drinking alcohol is 0.6. further, given that the student is over 21 years old, the probability of drinking alcohol is 0.8. it is also known that 30% of the college students are over 21 years old. the probability of drinking or being over 21 years old is