{"name":"Variance and Standard Deviation Calculator","short_name":"CalcMate","description":"Calculate standard deviation, variance, and mean for sample or population datasets. Includes step-by-step formulas and Bessel’s correction for accuracy.","start_url":"/en/math/standart-deviation","display":"standalone","background_color":"#ffffff","theme_color":"#10b981","icons":[{"src":"/icons/web-app-manifest-192x192.png","sizes":"192x192","type":"image/png","purpose":"any maskable"},{"src":"/icons/web-app-manifest-512x512.png","sizes":"512x512","type":"image/png"}]}