Provide an appropriate response. 1) The heights of ten fencale atedents (in inchesj in a eulegur math ctas are lisod behow tirat the mean the 2) The coste (in dollari) of 10 college math texbonks ate listed beiniv. Find the popalition standard sevaanin(b): hand) 7072717069236969707 3) Each year advertisers spend billions of doilars purchasing comumerdal tiase on metwork sorts telieviuion. In the first 6 months of 1988 , advertisers spent 51.1 bilion. Who were the largeef ependers? In a tecent atticle listed the top 10 leading spenders (in million of dollars) Calculate the sample variance..