I have a question about math it says Which of the following Surveys properly would best represent the entire population of seniors?
(A1) 20 honor roll students are randomly selected from the senior class 18 plan to go to a 4 year college

(B2) 20 seniors are randomly selected 15 plan to go to a 4 year college

(C3) 20 student council members are randomly selected 16 plan to go to a 4 year college
Sombody please help me I'm almost failing this class

Which expression is equivalent to 5r674 pression is equivalent to see lo 5r614) 4r322,4 ) 5 ( 2 5t5 |

What could explain what happened when the time was equal to 120 minutes

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.