Question

Puppets made by each puppeteer if the mean of the data set is three puppets find the number of puppets Marco made

Answer 1

4 puppets were made by Marco

Answer 2

(1+4+3+x)/4= 3
Multiply all by for to cancel out the division to get
1+4+3+x= 12
8+x= 12
Subtract the 8 from both sides to isolate the variable to get
x= 4
So, Marco made 4 puppets.