Identify the sampling method used in the following situations. A. Every sixth patient in the queue is selected
B. Patient are selected based on the discretion of the nurse
C. Patients are first divided by gender before selection is done from each gender
D. Fresh students for medical screening are first grouped according to their departments. Some departments are selected before some are sampled for screening.
E. The doctor had consultation with the first twenty patients in the queue.​

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.

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i

How do i take any fraction and make it into a decimal or percentage?