I need help on the last question. I already answered the other questions. I just need a formula, I can do the math

5 pts 5 1 Question 15 As part of a statistics project, a teacher brings a bag of marbles containing 800 white marbles and 300 red marbles. She tells the students the bag contains 1100 total marbles, and asks her students to determine how many red marbles are in the bag without counting them. A student randomly draws 100 marbles from the bag. Of the 100 marbles, 28 are red. The data collection method can best be described as O Controlled study Survey or Sample O Census O Clinical study The target population consists of O The 28 red marbles drawn by the student The 1100 marbles in the bag O The 100 marbles drawn by the student O The 300 red marbles in the bag None of the above The sample consists of O The 1100 marbles in the bag O The 300 red marbles in the bag The 100 marbles drawn by the student The 28 red marbles drawn by the student None of the above Based on the sample, the student would estimate that marbles in the bag were red. Check Answer https://maricopa.instructure.com/courses/1244463/assignments/13070689?module_item_id=26726915