we know that The formula for Sample Standard Deviation is indicated in the attached figure N2 n in this problem is 4 <span>and Yuri had to divide in the formula by 3 </span>
Total voters=v=80 total no. of democrats=d=65 total no. of republicans=r=15 probability of democrats=p1=65/80=0.8125 probability of republicans=p2=15/80=0.1875 probability of a democrat or a republican=p1+p2=0.8125+0.1875=1 <span />
