In an examination 42% students failed in Mathematics and 52% failed in Science. If 17% failed in both the subjects, find the Percentage of those Who Passed in both the subjects.
Given:
42% failed in Mathematics, 52% failed in Science, 17% failed in both.
Formula:
% failed in at least one = %Math + %Science − %both.
Solution:
% failed in at least one = 42 + 52 − 17 = 77%
% passed in both = 100 − 77 = 23%
Answer: 23%
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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