Question 939065
a child is born to mr.x every year for 7 consecutive years.
 Compute the mean of the children's age when;
i- the youngest is 1 year old.
{{{((1+2+3+4+5+6+7))/7}}} = {{{28/7}}} = 4 yrs is the mean
:
ii- the youngest is 8 years old.
{{{((8+9+10+11+12+13+14))/7}}} = {{{77/7}}} = 11 yrs is the mean