Some people responded to this request: "Dial 1 - 9 0 0 - PRO - LIFE to participate in a telephone poll on abortion. ( $ 4 . 4 5 per minute. Average call: 4 minutes. You must be 1 7 years old. ) " Identify the ( a ) sample and ( b ) population. Also, determine whether the sample is likely to be representative of the population. identify the sample. Choose the correct answer below