Answer:
1
Step-by-step explanation:
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Answer: Down there there is an image with the correct answer and step by step
I hope that it helps you!
Answer:
b. Invalid, because the sample may not be representative of the population.
Step-by-step explanation:
A sample of around 10% of the population is needed to be representative.
In this question:
We have a population of 500,000, and a sample of 10,000.
10,000/500,000 = 1/50 = 0.02 = 2% of the population, so not representative, and option b is correct.
Answer:
sry I can't understand how to do this question