A. Directions: Identity the sampling technique used in each of the following scenarios SCENARIO SAMPLING METHOD 1) A researcher randomly selected 10 barangays in a town for a study. She did this by writing the names of each barangay on a piece of paper and putting it in a bowl then drawing 10 pieces of paper from it. 2) The Grade 10 students of ESPS will be grouped according to their quarterly grades in Math. 15 students from each group will be randomly chosen to participate in a study involving students' learning styles in Math 3) A teacher asked her students to fall in line. He instructed one of them in select every 5" student on the line. 4) Choose three sections from among the eight sections of Grade 10 students of ESPS by a random number generator. The students from the three sections will participate in a survey on stress factors affecting teenagers 5) A researcher surveyed all diabetic patients in each of the 25 randomly selected hospitals in Metro Manila. B. Directions: Read, analyze, and solve the given problem A group of students got the following scores in a Mathematics test: 7, 9, 11, 16 and 20, Consider samples of size 3 that can be drawn from this population. a. List all the possible samples and the corresponding mean, (10 points) b. Construct the sampling distribution of the sample means. (1 point every row) (10 points) SAMPLE MEAN Frequency P(W) N