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Question: questions pl3 and pl4 relate to this paragraph according to...

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Questions PL3 and PL4 relate to this paragraph. According to Wikipedia, at most beaches, the time between consecutive high tides is 12 hours and 25 minutes. Being scientifically minded, you devise a simple experiment to test this statement. Your plan is to go to a beach and measure the ocean level at some regular interval over the course of several days. Then you will plot your data.

PL3. What is the longest time that you could wait between samples if you wanted to test Wikipedia’s claim?

a) 12 hours and 25 minutes

b) 6 hours and 12.5 minutes

c) 24 hours and 50 minutes

PL4. What might you conclude about tides if you measure the ocean level once a day, always at noon?

a) You would conclude that the time between high tides is 6 hours and 12.5 minutes, half of what is quoted in the Wikipedia article.

b) You would easily conclude that the time between high tides is 12 hours and 25 minutes, just as quoted in the Wikipedia article.

c) You might conclude that the level of the ocean is nearly constant from day to day, with approximately one month between high tides.

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