Astudent finds the slope of a line between (8, 17) and (1,4) she writes 17-14/1-8 what mistake did she make? a.) she used y-values where she should've used x-values. b.) she should have added the values, not subtracted them. c.) she mixed up the x and y-values d.) she did not keep the order of the points the same in the numerator and the denominator

Use the multiplier method to incrases £258 by 43%

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

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.