Hi, I took the AP Biology International exam, and when I see people talking, they keep mentioning things like the structure of nucleotides and AGO. But on my FRQ, I got something about an operon mutation. I heard that the international version is different, so I felt calm about it, but now everyone is talking about AGO and percentage change, and it’s making me feel like I took the wrong test. Is it actually okay?😅😅😅😅
The last time I took a test, I couldn’t finish on time and had 10 questions left. How can I complete all 60 questions, or what strategies can I use if I have to guess when time runs out?
How do you identify the null hypothesis, control group, dependent variable, and independent variable? For the null hypothesis, I know it usually says there is no difference, but I don’t understand which two things I’m supposed to compare when writing it. Also for chi-square, sometimes I see expected values calculated by dividing the total by the number of categories but other times they multiply the row total by the column total and divide by the grand total. When do you use each method☹️☹️☹️