Question 178753
First find the average.
{{{x[ave]=(44+41+20+24+41)/5=34}}}
Now for each sample, find the difference between the value and the average.
{{{x[1]-x[ave]= 44-34=10}}} then square it {{{100}}}
{{{x[2]-x[ave]= 41-34=7}}} then square it {{{49}}}
{{{x[3]-x[ave]= 20-34=-14}}} then square it {{{256}}}
{{{x[4]-x[ave]= 24-34=-10}}} then square it {{{100}}}
{{{x[5]-x[ave]= 41-34=7}}} then square it {{{49}}}
Sum those values,
{{{100+49+256+100+49=494}}}
The standard deviation is then,
{{{SD=sqrt((sum((x-x[ave])^2))/(n))=sqrt(494/(5))=9.94}}}