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03 Aug 2009, 04:14
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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Not Attempted Yet
Got this is the 1st question in Prep 2.
will post the OA soon.
will post the OA soon.
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03 Aug 2009, 04:59
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Got this is the 1st question in Prep 2.
will post the OA soon.
will post the OA soon.
Is the answer B (Two)?
Below is the way I solved:-
1) Mean of these 10 values is 100.
Since SD is 22.4 Hence those students who clocked the time between (100 -22.4 = 77.6) will fall in SD 1 below mean
But we need to find the values SD below mean greater then 1. There are 2 values 70 75. Hence ans is B.
Pls provide the OA
