i distributed a questionnarie and try to test some hypothesies my questionnaie was prepared acording to 5 point Likert type scale also I calculated Standard Deveation for each type of question but i want to calculate overall(Average) satandard deveation this is normally distributed and sample size was 426
S.D 1.0613; 1.0864; 1.1215; 1.1263; 1.1227; 0.9785; 1.0895;
I want to find the average S.D of Above data pleas be kind enough to help me...