Respuesta :
Option D is correct which is Lewie's because he surveyed people who may or may not have bought food.
Options given to us,
a.) Kelvin's because he surveyed people leaving an area where food is sold.
b.) Kelvin's because he surveyed every other person instead of every fifth person.
c.) Lewie's because he surveyed every fifth person instead of every other person.
d.) Lewie's because he surveyed people who may or may not have bought food.
As the main concern for this survey is to determine the average number of people who buy food at the mall, therefore more focus should be given to the mall entrance as people may come but may or may not purchase something from the food area.
Thus, Kelvin's survey won't give the correct result for the survey.
Hence, option D is correct which is Lewie's because he surveyed people who may or may not have bought food.
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Answer:
Lewie Survey produces less valid result.
Step-by-step explanation:
Given:
1. Kelvin surveys every other person leaving the food area.
2. Lewie surveys every fifth person leaving the mall's main entrance.
Therefore,
Kelvin will able to produce valid result as he is surveying every person who is leaving food court.
Means,
There are high chances that would have bought food from the court.
Whereas,
Lewie is surveying every fifth person leaving the the mall's entrance.
Therefore,
Here probability to produce valid result is less as they may have not buy food or they may visited other shops.
So, Lewie survey will produce less valid result
