Statistics and Probability, NAPX-J4-CA17

Marley is comparing the average daily rainfall in the towns of Byron Bay and Coffs Harbour in January.

What method below is the most valid?

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Marley is comparing the average daily rainfall in the towns of Byron Bay and Coffs Harbour in January.

What method below is the most valid?

Research the total rainfall each town received in January and divide by 31.

Multiple Choice (One Answer)

Variable name	Variable value
correctAnswer	Research the total rainfall each town received in January and divide by 31.

Is Correct?	Answer
x	Ask 1 in 10 residents in each town how much rain they received each day in January
✓	Research the total rainfall each town received in January and divide by 31.
x	Research the weekly high and low rainfall each town received in January.
x	Research the total rainfall each town received over the past year and divide by 12.