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31 Jan 2025, 20:25
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Dropdown 1: 0.18
Dropdown 2: 0.03
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
75%
(hard)
Question Stats:
60% (02:06) correct
40%
(02:26)
wrong
based on 683
sessions
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Date
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Not Attempted Yet
For a given city, the graph represents the daily deviation, in degrees Fahrenheit (°F), of the high temperature from the expected high temperature for each day in a 100-day period. Data is grouped into disjoint classes of deviations: for each value of T marked on the horizontal axis, the class centered at T includes all observed deviations greater than or equal to (T-2)°F but less than (T+2)°F. The height of each bar represents the number of deviations in the corresponding class. A given day's high temperature is x°F less than seasonal if it is x°F less than the left endpoint of the class centered at 0, and the high temperature is x°F greater than seasonal if it is x°F greater than the right endpoint of the class centered at 0.
From each drop-down menu, select the option that creates the most accurate statement based on the information provided.
For a randomly selected day in this 100-day period, the probability that the high temperature was at least 4°F greater than seasonal is and the probability that the high temperature was at least 8°F greater than the seasonal is
Something I'm confused on is the wording makes it seem like you're supposed to include the 0.16 for the first drop down and 0.15 for the second drop down but really it's asking you for greater than 4°F greater and greater than 8°F greater and not at least. There's a similar problem which I got correct previously so I was very confused getting this one wrong, especially since I read the wording carefully.
diq18graph705.png [ 14.36 KiB | Viewed 8632 times ]
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diq18graph705.png [ 14.36 KiB | Viewed 8632 times ]
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Official Answer
Dropdown 1: 0.18
Dropdown 2: 0.03
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01 Feb 2025, 23:00
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Why is answer is 0.18 and 0.03 instead of 0.34 and 0.18, considering that greater than 4 degrees may include some count of bar graph labelled 4 as well.
