Question

for what value of x the mode of the following data is 7-:3,5,6,7,5,4,7,5,6,(x+1)8,7

Answer 1

3+5+6+7+5+4+7+5+6+(X+1)8+7/11=7
55+(X+1)8=77
X+1=22/8
X=11/4 -1
X=7/4=1.75

Answer 2

x=6, then 7 is repeated 4 times

and it is the mode of the data