PROBLEM : STANDARD DEVIATION A STUDENT HAS THE FOLLOWING QUIZ SCORES : 5 8 16 17 18 20 . FIND THE STANDRALD DEVIATION FOR THIS POPULATION OF QUIZ SCORES K Do m m 2 PROBLEM A CONSUMER GROUP HAS TESTED A SAMPLE OF 8 SIZE - D BATTERIES FROM EACH OF & COMPANIES , THE RESULTS OF THE LISTS ARE SHOWN IN THE FOLLOWING TABLE, ACCORDING TO THESE TESTS WHICH COMPANY PRODUCES BATTERIES FOR WHICH THE VALUES REPRESENTING HOURS OF CONSTANT USE HAVE THE SMALLEST STANDARD DEVIATION? COMPANY HOURS OF CONSTANT USE PER BATTERY STANDARD DEVIATION EverSo Bright 6-2 , 6 . 4, 71/ 5. 9, 8,3, 5.3, 715, 9.3 1:328 It Dependable 6 . 8, 6. 2, 7 . 2, 5 . 9, 710, 7. 4, 7. 3 8. 2 0. 719 H Beacon 61, 6:4, 73, 5.7, 7.1, 716, Fil, 8.5 0187 7 H NOTES: EXPLAIN HOW THE PROCESS STEP-BY-STEP WITH RATIONALES