Provide an appropriate response. 2) The mean score of a placement exam for entrance into a math class is 80, with a standard deviation 2) of 10. Use the Empirical Rule to find the percentage of scores that lie between 60 and 80. (Assume the data set has a bell-shaped distribution.) A) 34% B) 95% C) 47.5% D) 68% 3) If one card is drawn from a standard deck of 52 playing cards, what is the probability of drawing 3). an ace? A) 13 B) N - D) 32 4) Use the ogive below to approximate the number in the sample. 4) Leisure Time of College Students 68886838 Cumulative frequency (Number of students) 9.5 145 19.5 245 295 345 39.5 Number of hours A) 28 B) 100 C) 80 D) 341