Would be neat to know what the margin of error is. Is it less than 10%? ie given 157 dots, how difficult is it to estimate 150-170 dots? I think part of this i

Would be neat to know what the margin of error is. Is it less than 10%? ie given 157 dots, how difficult is it to estimate 150-170 dots? I think part of this is a lack of practice. I've only counted how many macoroni noodles were in my bowl once