Identify a potential source of bias (if any). using random digit dialing, 1599 people were called and asked what obstacles (such as childcare or long hours at work) kept them from exercising. (source: yankelovich partners, inc. for shape up america! )

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.

step-by-step explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without