What type of variable star is shown in the image above.

Logistic growth curves are density-dependent. select the best answer from the choices provided t f

D/dx(1+x^4+x^6/x^2+x+1) a)2x-1 b)2x+1 c)2 d)0

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