A PE teacher at ABC Elementary School wants to know how many hours of exercise elementary school students are having during the holidays. A random sample of 30 Grade 5 students at ABC Elementary School is sampled on the first day of school after the holiday break. a) Identify the population of interest. [2] b) Provide a description of the sample and the sampling frame. [1+1] c) Does the above sampling process involve any selection bias? Briefly justify your answer. [0+2] Paragraph V BIUA Ev v +