Using measures of central tendency:
5. write and solve an equation to find the value of "x". 3.8, 4.2, 5.3,x; mean 112
7. write and solve an equation to find the value of "x". 100, 121, 105, 113, 108, x; mean 112
9. find the range. 12, 15, 17, 28, 30
11. find the range. -12, -15, 5, 3, -2, 0, -7
13. for each list of data, find the range and the mean. use the range to compare the spread of the data.
list 1: 64, 43, 55, 28, 71. list 2: 48, 53, 61, 47, 51