Given:
In a class of 73 students, Raman's rank is 19th from the bottom.
Formula Used:
Total students = {(Raman’s rank from top) + (Raman’s rank from bottom) -1}
Solution:
73 = Raman’s rank from top +19 -1
Raman’s rank from top is 73 - 18 = 55th
Hence correct option is (c) 55
English
10 Questions
20 Marks
12 Mins English English50 Questions100 Marks60 Mins English English10 Questions20 Marks12 Mins EnglishFor different sets of datasets X and Y. correlation coefficient between X and Y, that is R and standard deviation of X and Y, that is, S(X) and S(Y) are given in A-D below. Estimate the covariance between X and Y for each dataset and arrange in ascending order.
A. R= 0.5, S(X)= 8, S(Y)= 10
B. R= 4/7, S(X)= 7, S(Y)= 9
C. R= 0.7, S(X)= 12, S(Y)= 5
D. R= 19/42, S(X)= 14, S(Y)= 6
Choose the correct answer from the options given below:
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A.
B.
C.
D.
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