Question

A scientist plans to find out the cause of decrease in bird population in a location. He interviews 50 people who work in the local oil mine and 45 of them believe that the mine does not affect the birds. The scientist concludes that 90 percent of people in the location believe that the local oil mine does not cause decrease in bird population. Why is the scientist's conclusion most likely unreliable?

Answer 1

i guess scientist's conclusion is based on observation so they are unreliable

Answer 2

but this is just an example, else we couldn't have made progress

Answer 3

it is jst acc. to the group of those 50 people,whose mindset may b diff. from others from the people living in the same city..so the result is not relaible...