For # 1-3, classify each underlined number as a parameter or as a statistic. Then give the appropriate notational statement. (such as: s=5.3 sample standard deviation) 1. Forty-two percent of today's 15-year-old girls will get pregnant in their teens. 2. A 1993 survey conducted by the Richmond Times-Dispatch one week before election day asked voters which candidate for the state's attorney general they would vote for. Thirty-seven percent of the respondents said they would vote for the Democratic candidate. On election day, 41% actually voted for the Democratic candidate. 3. The National Center for Health Statistics reports that the mean systolic blood pressure for males 35 to 44 years of age is 128 and the standard deviation is 15. The medical director of a large company looks at the medical records of 72 executives in this age group and finds that the mean systolic blood pressure for these executives is 126.07. 4. Given the small population of grades: 82, 76, 88, 80 a. What is the population mean and standard deviation? (use notation symbols to name each). b. Without making a list of all possible samples of size 2, what would be the mean of all those sample means? c. How would the standard deviation of the sample means compare to the population standard deviation? (equal, less than, or greater than) and why