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The table lists minimum temperature, maximum temperature, an

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The table lists minimum temperature, maximum temperature, an [#permalink] New post 08 May 2013, 06:00
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The table lists minimum temperature, maximum temperature, and weather conditions reported in 30 cities on 6 continents on February 19, 2011.
Attachment:
Table2.png
Table2.png [ 24.92 KiB | Viewed 1511 times ]

For each of the following statements, select Yes if the statement is true based solely on the information reported for these cities on this day. Otherwise select No.

Yes No
The mean maximum temperature for the cities in South America was greater than that for the cities in Oceania.
At least one city reporting fine weather had a maximum temperature less than 0°C.
For the Asian cities, the median minimum temperature was 12°C.
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Re: The table lists minimum temperature, maximum temperature, an [#permalink] New post 08 May 2013, 22:54
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The table lists minimum temperature, maximum temperature, and weather conditions reported in 30 cities on 6 continents on February 19, 2011.
Attachment:
Table2.png

For each of the following statements, select Yes if the statement is true based solely on the information reported for these cities on this day. Otherwise select No.

Yes No
The mean maximum temperature for the cities in South America was greater than that for the cities in Oceania.
At least one city reporting fine weather had a maximum temperature less than 0°C.
For the Asian cities, the median minimum temperature was 12°C.


The answers would be, True, False and True.

Statement 1: Mean Maximum Temp for South America is 33.5 where as the mean max for Oceania is 27. Hence the answer is true.
Statement 2: All the minimum temps for cities with weather as fine are greater than 0. Negative temps are only available for cloudy and Bright weather conditions.
Statement 3: The set of minimum temps in Asian cities is {-3,-3,3,3,21,22,24,26}. The median is 12. Hence, True.

Please correct me if I am wrong!

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Arpan
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Re: The table lists minimum temperature, maximum temperature, an [#permalink] New post 08 May 2013, 23:16
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The mean maximum temperature for the cities in South America was greater than that for the cities in Oceania. YES
At least one city reporting fine weather had a maximum temperature less than 0°C. NO
For the Asian cities, the median minimum temperature was 12°C.YES
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Re: The table lists minimum temperature, maximum temperature, an [#permalink] New post 16 May 2013, 21:42
Also Attaching the excel for this question.

1.The mean maximum temperature for the cities in South America was greater than that for the cities in Oceania.
Mean Max for South America = 32
Mean Max for Oceania = 27
TRUE

2. At least one city reporting fine weather had a maximum temperature less than 0°C.
None of the Cities with FINE weather has a maximum temerature less than 0. The lowest of the maximum tem for these fine weather cities is 5 degree for VAN
FALSE

3.For the Asian cities, the median minimum temperature was 12°C.
There are 8 Asian cities and their minimum temps listed in ascending order is: {-3,-3,3,3,21,22,24 and 26}
Median is the average of 4th and 5th terms (in this case 3 and 21) which is 12 degrees
Hence TRUE
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Min MAx IR Q.xlsx [9.15 KiB]
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Re: The table lists minimum temperature, maximum temperature, an   [#permalink] 16 May 2013, 21:42
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