Posted by **Hemant** on Saturday, April 17, 2010 at 1:07am.

500 candidates appeared for a certain test. The mean scores was 59 and variance was 25. Assuming the distribution to be normal. find 1.% of candidates scoring 64 and above. 2. No. of candidates having score between 54 and 69. ( Given : For a s.n.v.z, the area between x=0 to z=1 is 0.3414 and between z= 0toz=2 is 0.4773

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