. Ms. Kelly lists the number of hours each of her 1st period students spent doing homework last week.

12, 10, 8, 9, 11, 15, 3, 9, 8, 13, 9, 11, 5, 11, 7

What is the mode for the data set?

8, 9, and 11 hours only

11 hours only

9 and 11 hours only

9 hours only

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

Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet