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woodridgems
woodridgems woodridgems
  • 27-02-2017
  • Mathematics
Answered

A pharmacy wants to survey its customers to find out which brand of toothpaste they prefer.


Which survey methods are likely to be biased?

Verified Answer :

AwesomeChocolate
AwesomeChocolate AwesomeChocolate
  • 09-03-2017

One hundred people from the pharmacy’s customer list are selected at random, called on the phone, and asked.  
or 
Those customers who buy toothpaste with a coupon are selected, and the toothpaste brand they purchased is recorded.

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