Calculate coefficient of mean deviation for the observations $240,237,245,228,256,272,217,268$, $259,248,242,270$.
→From a population of $175$ units, to obtain a $4 %$ simple random sample without replacement use the following random numbers:
$160, 235, 715, 547, 1295, 197, 975, 358, 275, 108.$
→Draw a random sample of $2$ per cent “students without replacement from $600$ students of a particular college for giving their feedback on faculty members. There are $200$ students in each of the three years ($F.Y., S.Y.$ and $T.Y.$)
Use the following three-digit random numbers :
For $F.Y. : 158, 092, 411, 745, 009, 724, 674, 550, 716, 359, 419, 696, 200, 458.$
For $S.Y.:384, 019, 679, 131, 390, 057, 299, 786, 006, 206, 729, 344, 543, 309.$
For $T.Y.: 227, 483, 741, 766, 027, 070, 648, 956, 198, 912, 200, 058, 696, 500.$
→Three digit random number are given below. Select a $2 \%$ random sample with and without replacement from a population of size $500$ using these random numbers.$270,530,390,420,270,111,189,273,692,488,512,192,219,912,129,723$
→$3$ students from a group of $18$ students failed in the examination for the subject of Economics. The marks obtained by the $15$ students who passed are as follows :
$42, 65, 53, 75, 43, 50, 68, 57,79, 48, 51, 61, 55, 70, 64.$
Find the median marks of all $18$ students.
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