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25 Feb 2020, 01:15
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
47% (01:07) correct
53%
(01:11)
wrong
based on 195
sessions
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During an experiment, Emily collected 11 different temperature readings, all of which were integers. How many of the temperature readings were negative?
(1) The median temperature reading was -1.
(2) Exactly five of the temperature readings were positive.
25 Feb 2020, 07:19
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(1) The median temperature reading was -1.
Because Emily collected 11 different temperature readings, all of which were integers, then the next readings (7th to 11th) would be either 0 or positive. Thus, there were 6 negative temperature readings.
SUFFICIENT
(2) Exactly five of the temperature readings were positive.
There could be five to six negative temperature readings, but we cannot deduce exact number of negative temperature readings.
NOT SUFFICIENT
FINAL ANSWER IS (A)
Posted from my mobile device
Because Emily collected 11 different temperature readings, all of which were integers, then the next readings (7th to 11th) would be either 0 or positive. Thus, there were 6 negative temperature readings.
SUFFICIENT
(2) Exactly five of the temperature readings were positive.
There could be five to six negative temperature readings, but we cannot deduce exact number of negative temperature readings.
NOT SUFFICIENT
FINAL ANSWER IS (A)
Posted from my mobile device
Archit3110
Major Poster
25 Feb 2020, 09:04
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#1
The median temperature reading was -1.
it means that there must be 5 other readings which must be -ve ; making total = 6
sufficient
#2
Exactly five of the temperature readings were positive.
so balance 6 readings can be -ve or one of them could 0 so insufficient
IMO A
During an experiment, Emily collected 11 different temperature readings, all of which were integers. How many of the temperature readings were negative?
(1) The median temperature reading was -1.
(2) Exactly five of the temperature readings were positive.
The median temperature reading was -1.
it means that there must be 5 other readings which must be -ve ; making total = 6
sufficient
#2
Exactly five of the temperature readings were positive.
so balance 6 readings can be -ve or one of them could 0 so insufficient
IMO A
During an experiment, Emily collected 11 different temperature readings, all of which were integers. How many of the temperature readings were negative?
(1) The median temperature reading was -1.
(2) Exactly five of the temperature readings were positive.
