Redstone Inc. manufactures and markets computer games. Its latest game, Warrior Xero, is designed specifically for teenagers. The company recently implemented a free trial where they invited teenagers to their office to play the game. After the free trial, the company's market research executives conducted discussion sessions with the teenagers to gain insights into the product and whether any changes needed to be made. The research conducted by Redstone Inc. best exemplifies . Group of answer choices mathematical modeling observational research focus groups group experiments

In a high school with 3000 students, counselors are putting together a math tutoring program for the neighboring middle school. they plan to invite high school students with high average test scores to tutor middle school students, and they would like to offer gift cards to the student tutors. the counselors have a spreadsheet showing each student’s average test scores, and in order to find out how many gift cards they should purchase, the counselors need to count how many students would qualify to become tutors. which type of function would best the counselors determine the number of eligible students?