Una progresion aritmética de diferencia 0,5 y con primer término -3

John bought 5 lemons and used 2 of them for a salad how much did he use for. a salad . he used % of the lemons.

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

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.