I don't understand I need help!

Question

Answer 1

Hi!

So first thing to do is to find the mean by adding all the pages (5+20+18+13+13+30+20 which equals 119) and dividing them by the number of days (119/7=17). Then, you will subtract each number from 17 (17-5=12, 17-20=-3, 17-18=-1, 17-13=4, 17-13=4, 17-30=-13, 17-20=-3). Although there are negative numbers, you can ignore them because the problem is asking for the distance between the number of pages read for that day and the mean (think how many spaces would you jump on a number line?). Therefore, the correct answer is a!