Question

What is the MAIN difference between biased and unbiased samples, please example too...?

Answer 1

an unbiased sample is completely random, what you might call "blind", and therefore is more repreentative. For example if I was doing a political survey and I only chose people from FineGael, that would be biased!

Answer 2

@Nnesha good... can you explain this...

Answer 3

@BPDlkeme234 what will be this, a biased or unbiased....

"Paki take random people to take a survey"....?

Answer 4

can I explain political bias? If I only chose a particular narrow group of people who share the same political views then the outcome of my survey will be biased in favour of that view. If however, I chose a random sample from a population, then the views are more likely to be evenly distributed i.e. not in favour of any one particular political view, and therefore less biased

Answer 5

@iambatman @ikram002p what you say guys...?

Answer 6

Well there are many ways of chosing people for a survey, the important point is that it is random. (sometimes if you do a dra you take a number from a hat, this is random, because everyone has an equally likely chance of being selected from the hat)

Answer 7

rite... so it will be biased or unbiased then...? @BPDlkeme234

Answer 8

lol

Answer 9

like @BPDlkeme234 said except if you select a random bunch of people from the same neighborhood or street, it would be biased

Answer 10

We normally use unbiased samples when calculating confidence intervals or carrying out hypothesis testing.