Question 1152167

Sample of {{{n=5}}}scores has a mean of {{{mu=12}}}, 1 new score is added and the new mean is calculated to be {{{mu=11}}}, what is the new score?



{{{5*12 = 60}}}
Now we can add {{{11}}} to this
{{{60+11=71}}}
and divide by the new {{{n}}} which is {{{6}}}
{{{71/6 = 11.8333}}} <-- the new mean