Mileage Baltimore, MD Binghamton, NY Gettysburg, PA Philadelphia, PA Trenton, NJ
Allentown, PA 177 134 123 66 78
Harrisburg, PA 88 184 39 114 133
Philadelphia, PA 102 184 143 35
Reading, PA 112 158 96 65 84
Scranton, PA 198 59 159 126 138
How far is it from Philadelphia, PA to Binghamton, NY?
a. 184 mi
b. 123 mi
c. 158 mi
d. 96 mi

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