Posted by Dharmenra on Friday, October 15, 2010 at 6:10am.
Make a Venn diagram.
5% fail math only
25% fail both
10% fail stats only
60% pass both.
Of the 30% (of all students) who failed math, 5/6 of that group (25% of all students)failed stats also. That is a conditional probability of 83.3%. Only 16.7% of the math-failing group pass stats.
as u hve explained everything but i didn't get that 45% failed in atleast 1 of the subject but if we add
(5+25+10)% then we get only 40% which should be 45%.....plz explain
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