The test scores for last week's History test were: 76, 100, 94, 90, 68, 90, 80, 92, 84 If test scores of 60 and 68 are added to the list, what would happen to the mean and median? A) The mean and median stay the same. B) The mean and the median become equal. C) The mean and median get closer together. D) The mean and the median get further apart. Number of Sales Size 5 6 7 8 9 10 Number Sold 8 14 20 16 7 3 The data chart shows the number of sales for a particular style of shoe last month. Which measure of central tendency will help the store manager order the most popular size for restocking? A) mean B) median C) mode D) range

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

Which value would be a solution for x in the inequality 47-4x< 7

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