27-14

magical cook · Posted: Wed Sep 05, 2007 12:13 pm Post subject: 27-14

Hi, Can anyone help me with this? thank yoU!

ri2007 · Posted: Wed Sep 05, 2007 12:58 pm Post subject:

Answer is (I) 3

below is the explaination . pls let me know if i am wrong

just order all the numbers in asending order to find the median and calculate the median with all the givenchoices (i.e the middle value, in this case the sum of the 2 numbers in the middle/2)

in this case you see that only by using 3 the median is a fraction.

Now add all the numbers to and you will see none of them are divisible by 6 so even without calculating further you see that the answer must be (I)

you can confirm this by actually calculating mean is 6.5 (39/6) and median is 6.5 (6+7 / 2)

magical cook · Posted: Wed Sep 05, 2007 1:44 pm Post subject:

Thank you but answer seems different. (actually follwing the way the question should be...)

A. I only
B. II only
C. III only
D. I and III only
E. I, II, and III

Can anyone help us?

ri2007 · Posted: Wed Sep 05, 2007 2:13 pm Post subject:

you are right - both 12 and 3 satisfy the conditions given. Are you sure the question does not give you a choice of 1 & 3?

the method I haveused for calculating the median and mean is correct you can cross check on excel.

I made a silly mistake earlier while calculatin the mean with no. of defects as 12 but thats abt it.

magical cook · Posted: Wed Sep 05, 2007 3:11 pm Post subject:

than's correct - thanks,