GUYS PLS HELP ME

ITZ MY LAST ASSIGNMENT I NEED AND I DONT KNOW HOW TO DO IT

The polynomial function of least degree with a leading coefficient of 1 is: f(x) = x3 + ax2 + bx + c

Pls will give brainliest and all p.s u can zoom in if u cant see plss

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours