Question 616342
Mean = (Sum of the values)/(Number of values)


17 = (14+6+17+15+12+22+19+x)/8


17 = (105+x)/8


17*8 = 105+x


136 = 105+x


136-105 = x


31 = x


x = <font color="red">31</font>


So you need to add <font color="red">31</font> to the list.