Please match the following biases/errors and examples (this question allows multiple attempts) :

The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives.

a.A phone survey does not contact the homeless

b.Actual sales may not reflect underlying customer demand

c.Growth rates for one product may not predict those for another

d.Accounting profits do not correspond to economic profits

e.Demand histories do not reveal price elasticity

1.Sampling error

2.Differences in purpose

3.Masking

4.Inappropriateness

5.Definitional differences