Friday

August 1, 2014

August 1, 2014

Posted by **Dharmenra** on Friday, October 15, 2010 at 6:10am.

a. He failed in Mathematics only

b. He passed in Statistics, if it is known that he has failed in Mathematics

- IGNOU probability -
**drwls**, Friday, October 15, 2010 at 6:22amMake 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.

- IGNOU probability -
**Amit**, Sunday, October 24, 2010 at 11:04amas 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

**Related Questions**

Maths - Among the examinees in an examination 30%, 35% and 45% failed in ...

probability - among the exames in the examination 30%, 35% & 45% failed in ...

statistics - among the exames in the examination 30%, 35% & 45% failed in ...

probability-April - The probability that a student passes Mathematics is 2/3 and...

statistics - Among the 500 first year students of college, 270 students study ...

mathematics - 1. In an examination conducted for 80 candidates, those who passed...

Math - In a group of 105 students, 70 students passed Mathematics, 60 students ...

math - In a group of 105 students, 70 students passed Mathematics, 60 students ...

Statistics for Development - one hundred students seat for a mathematics ...

Mathematics - Among 500 freshmen pursuing a business degree at a university, 313...