Re: [R] Help -normal distribution

Hi, But i didn't understand why you did it like this qnorm(40/200)?? I already found the answer qnorm(.20,181,7.3) and qnorm(.80,181,7.3) Thanks. On Mon, Aug 2, 2010 at 12:33 AM, Arun.stat wrote: > > try > qnorm(40/200) > -- > View this message in context: > http://r.789695.n4.nabble.com/He

Re: [R] Help -normal distribution

Also note that you can 'switch' tails via the argument lower.tail. By default, it is TRUE. > qnorm(p = .20, mean = 181, sd = 7.3, lower.tail = TRUE) [1] 174.8562 > qnorm(p = .20, mean = 181, sd = 7.3, lower.tail = FALSE) [1] 187.1438 Cheers, Josh On Sun, Aug 1, 2010 at 4:04 PM, Arun Kumar Saha

Re: [R] Help -normal distribution

I gave you hint only, however whatever you done is correct. On Mon, Aug 2, 2010 at 4:30 AM, n.a.s wrote: > Hi, > > But i didn't understand why you did it like this qnorm(40/200)?? > > I already found the answer  qnorm(.20,181,7.3) and qnorm(.80,181,7.3) > > > Thanks. > > > On Mon, Aug 2, 2010 a

Re: [R] Help -normal distribution

n.a.s gmail.com> writes: > > Hi , can any one help in this problem > > According to some study, the height for Northern European adult males is > normally distributed with an average of 181 centimeter and a standard > deviation of 7.3 centimeter. Suppose such an adult male is randomly chosen. >

Re: [R] Help -normal distribution

try qnorm(40/200) -- View this message in context: http://r.789695.n4.nabble.com/Help-normal-distribution-tp2309730p2309735.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman

[R] Help -normal distribution

Hi , can any one help in this problem According to some study, the height for Northern European adult males is normally distributed with an average of 181 centimeter and a standard deviation of 7.3 centimeter. Suppose such an adult male is randomly chosen. Let X be height of that person. The nex