A study of North York University students showed the mean age of all students in the first year of university to be 20.8 years old with a standard deviation of 1.19 years. A randomly selected subgroup of these first year students also averaged 20.9 years in age with a standard devaition1.21 years. a) Are the numbers 20.8 and 1.19 statistics or parameters? Explain. O The numbers are parameters because they were calculated for all North York University's first year students. 0 The numbers are statistics because the numbers were calculated for all North York University's first year students. 0 The numbers are parameters because the numbers were calculated for a sample of North York University students and are therefore estimates. 0 The numbers are statistics because the numbers were calculated for a sample of North York University students and are therefore estimates. b) Are the numbers 20.9 and 1.21 statistics or parameters? Explain. O The numbers are parameters because they were calculated for a sample of North York University students and are therefore estimates. 0 The numbers are statistics because the numbers were calculated for a sample of North York University students and are therefore estimates. 0 The numbers are parameters because they were calculated for all North York University's first year students. 0 The numbers are statistics because the numbers were calculated for all North Screenshot York University students and are therefore estimates. O The numbers are statistics because the numbers were calculated for a sample of North York University students and are therefore estimates. O The numbers are parameters because they were calculated for all North York University's first year students. O The numbers are statistics because the numbers were calculated for all North York University's first year students. c) Select any correct pair of label and value below: Ox = 20.9 and s = 1.19 Ox = 20.8 and o = 1.19 Ou = 20.9 and s = 1.21 Ou = 20.9 and o = 1.19 Ox = 20.9 and o = 1.19 Ou = 20.8 and o = 1.21 Ou = 20.8 and s = 1.21 Ox = 20.8 and s = 1.19 Check Answer Screenshot