Common Errors

OMR|Common Error (Questions)

What, Where, How And When?|History (इतिहास), Past, Present|Dates, Place (तिथि, स्थान)|Before Common Error|OMR|Summary

What, Where, How And When?|History (इतिहास), Past, Present|Dates, Place (तिथि, स्थान)|Before Common Error|OMR|Summary

A and B are two students. Their probabilities of solving a problem correctly are 1/4 and 1/5 respectively. If the probability of their making a common error is 1/40, and they obtain the same answer, then the probability of their answer is correct is

A and B are two students.Their chances of solving a problem correctly are (1)/(3) and (1)/(4) respectively If the probability of their making a common error is,1/20 and the obtain the same answer,then the probability of their answer to be correct is

Introduction to Errors | Types Of Errors | Systematic Errors | Random Errors | Operations on Numbers