I REALLY NEED HELP WITH THIS PROBLEM! PICTURE ATTACHED A y = 4.6x + 187.50

B y = 5x + 127.50

C y = 0.046x + 187.50

D y = 0.05x + 127.50

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2

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.