Bentley and Nevaeh are reading the same book. At the beginning of the month, Bentley was on page 8 and Nevaeh was on page 32. Bentley will read 10 pages per day and Nevaeh will read 4 pages per day. Let B represent the page of the book that Bentley is on at the end of t days into the month, and let N represent the page of the book that Nevaeh is on at the end of t days into the month. Graph each function and determine what page Bentley and Nevaeh will be on at the time they are both on the same page.

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above