Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
Home  >>  JEEMAIN and AIPMT  >>  Mathematics  >>  Class12  >>  Probability
0 votes

Let P be the probability of happening any event and Q its failure, then the total chance of $ r$ success in $n$ trials is

$\begin {array} {1 1} (A)\;n\: C_rP^rQ^{n-r} & \quad (B)\;n\: C_rP^{r-1}Q^{r+1} \\ (C)\;C\: C_rP^{r+1}Q^{r-1} & \quad (D)\;n\: C_{n+r}P^rQ^{n-r} \end {array}$


Can you answer this question?

1 Answer

0 votes
Ans (A)
$n\: C_rP^rQ^{n-r}$
answered Jan 6, 2014 by thanvigandhi_1

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App