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20 Nov 2023, 09:56
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Dropdown 1: less than
Dropdown 2: Choose this one
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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88% (01:17) correct
12%
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For each blank, select the answer choice that correctly completes the statement according to the information in the graph.
3. For an eruption of less than two minutes, the maximum recorded wait time is the minimum recorded wait time of an eruption of more than four minutes.
4. Please choose this drop-down as a Graphs question needs to have 2 .
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Official Answer
Dropdown 1: less than
Dropdown 2: Choose this one
20 Nov 2023, 10:01
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Official Explanation
STEP 1: ANALYZE THE INFORMATION
Your first step with a question of this type should be to read the text that accompanies the graph. You may see only a single sentence, or you may see (as in this case) a full paragraph. This text is important. Although most Graphics Interpretation questions can be answered without reference to the text, reading will give you an overview of the information the graph contains and how it is presented. On Test Day, taking a moment to paraphrase the written information will improve your understanding of the image, speeding up your analysis and reducing your chances of committing a careless error.
Here, the paragraph tells you that the graph shows the behavior of a single geyser, Old Faithful. The graph presents two types of information: how long the eruptions of Old Faithful last and how long it then takes before the next eruption happens. Each point on the graph represents an eruption.
Next, look at the graph itself. Get a bird’s-eye view of the graph by reading the title and the labels of the axes and notice how the information from the paragraph is represented in the graph. Here, you’ll notice that the duration, or length, of the eruption is measured against the waiting time that follows it before the next eruption. Now look at the units of measurement that correspond to each axis and determine whether the scales are similar. In this case, both axes are measured in minutes, but the scales are very different: the x-axis is measured in 0.5-minute increments, while the y-axis is measured in 10-minute increments. Furthermore, the x-axis starts at 1.0 and ends at 5.0, while the y-axis starts at 40 and goes to 90. Then notice if there are any specific features mentioned in the accompanying paragraph that you see represented on the graph, such as a regression line.
The final step before answering the questions is to look at the data to see if they fall into a general pattern. On this scatter plot, most of the data points separate into two distinct groups. With a pattern this clear, you can anticipate that this observation will be key to answering one or more of the accompanying questions. Making these observations before analyzing the questions will help you answer each question more effectively.
STEP 2: APPROACH STRATEGICALLY
Question 3:
For this question, you need to examine the data in the graph more closely. This statement contains a comparison between two data points: the maximum wait time for an eruption that lasts less than two minutes and the minimum wait time for an eruption that lasts more than four minutes. Note that you’re asked to compare the wait times of these two points—that’s their height along the y-axis. So this question asks you to find these two points and compare their heights. The first point is the highest point to the left of the two-minute line on the x-axis, which looks to be just below 65 on the y-axis. Now find the second point, the lowest point to the right of the four-minute line on the x-axis. The lowest point to the right of that line appears to be just below the 70-minute mark on the y-axis. The first point is, therefore, lower than the second, so you would choose “less than,” (C).
