PYC3704 MCQ EXCK 2022

Question 17 A standard normal distribution has a mean of (a) - - - - - and a standard deviation of (b) - - - - -. 1. (a) 1, (b) 16 2. (a) 50, (b) 1,5 3. (a) 0, (b) 1 Question 18 Which best describes the frequency distribution of the ages of students attending a particular class? 1. A graph of the ages of the students arranged from young to old 2. The total of all ages, divided by the number of students 3. The standard deviation of ages, indicating the width of the age distribution