Total chances = 100
Suppose, that the chances he misses = x
Thus, the chances he hits = (100 - x)
Now, total money he gets is 300. Chances need to hit on target to earn Rs. 300,
= 30
Hence, the price and penalty is same. So, the difference of hits chances and missed chances will be 30 (remaining chances). Thus,
(100 - x) - x = 30
100 - x - x = 30
-2x = 30 - 100
-2x = -70
x = 35
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
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A.
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D.
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