Anna has $274.00 in her account on sunday. over the next week, she makes the following changes to her balance via deposits and purchases: day debit ($) credit ($) monday 194.62 35.45 tuesday 11.20 wednesday 145.86 24.75 thursday 53.35 33.80 friday 31.60 45.77 saturday 12.90 61.63 anna gets an overdraft fee if her balance at the end of the day is negative. on which day or days does anna get charged an overdraft fee? i. wednesday ii. thursday iii. friday a. i only b. i and ii c. ii and iii d. iii only select the best answer from the choices provided

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