Calculate the Standard Deviation for the given Data Sets. 1.) 7, 1, 3, 9, 8, 1

2.) 11, 14, 10, 12, 15, 6

3.) 19, 17, 10, 10, 12, 5, 13, 2

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet