Inverse cumulative normal dis help

  • Thread starter Thread starter bayan
  • Start date Start date
  • Tags Tags
    Inverse Normal
bayan
Messages
202
Reaction score
0
any one know how to solve for k in the following question?

Pr(X<k|X<23)=0.32 where X-N(22,25).

I just can't get it.

cheers n thanks in advance.
 
Physics news on Phys.org
P(X<k|X<23) = 1 if k >= 23 why??
if k<23, then
P(X<k|X<23) = P(X<k)/P(X<23) why??

-- AI
 
doesn't work out and they have the answer as 17.525 in book.

any helps
 
What does this notation mean: X-N(22,25) ? Can you express it with words?
 

Thread 'Here's a Statistics problem for game of Polo (or Hockey if you like)'

Namaste & G'day Postulate: A strongly-knit team wins on average over a less knit one Fundamentals: - Two teams face off with 4 players each - A polo team consists of players that each have assigned to them a measure of their ability (called a "Handicap" - 10 is highest, -2 lowest) I attempted to measure close-knitness of a team in terms of standard deviation (SD) of handicaps of the players. Failure: It turns out that, more often than, a team with a higher SD wins. In my language, that...
View full post »

Thread 'Roulette wheel physics and probability'

Hi all, I've been a roulette player for more than 10 years (although I took time off here and there) and it's only now that I'm trying to understand the physics of the game. Basically my strategy in roulette is to divide the wheel roughly into two halves (let's call them A and B). My theory is that in roulette there will invariably be variance. In other words, if A comes up 5 times in a row, B will be due to come up soon. However I have been proven wrong many times, and I have seen some...
View full post »

Similar threads

A A different discrete normal distribution
Replies
2
Views
2K
MHB Likelihood Ratio Test for Common Variance from Two Normal Distribution Samples
Replies
1
Views
3K
I Why does normal distribution turn into t distribution when variance is unknown?
Replies
5
Views
4K
I Ways to put n balls in m boxes such that exactly k boxes are empty?
Replies
29
Views
3K
I Finding CDF of Maximum of Order Statistics of Random Variables
Replies
8
Views
2K
I Probability of White Ball in Box of 120 Balls: Solved!
Replies
3
Views
3K
I Variable transformation for a multivariate normal distribution
Replies
1
Views
2K
A Calculating Bivariate Normal Probabilities
Replies
1
Views
2K
Finding μ and σ from a normal cumulative distribution function
Replies
6
Views
2K
I Local inverse of non bijective functions
Replies
9
Views
3K

Hot Threads

Recent Insights

Back
Top