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It is required to seat 5 men and 4 women in a row so that the women occupy the even places how many such arrangements are possible?
There are two ways to look at this problem; gender or person. Gender (M=Male, F=Female); There is only one way and that is MFMFMFMFM. By person, you have 9 places to fill. The first is 5 males could be placed there, the next 4 females could be placed there, the next 4 males can be placed there, the next 3 females can be placed there and so forth. So in this instance there are 5*4*4*3*3*2*2*1*1 = 2880 arrangements. Another way is just 5!*4!=2880. Here 5! is for men and 4! for women. ie. Men can be arranged in 5 ways and women can be arranged in 4 ways.
If the probability of a specific trait will appear in the F generation is 0.25 how many individuals would be expected to show that trait in an f generation of 80 individuals?
20
What is F in statistics?
An F in statistics is typically a grade. This F means that you are failing or have failed the course.
What is the relation between chi square distribution and f distribution?
A quick answer: F is the ratio of two Chi squared divided by their degrees of freedom respectively. Where: * (X1)2 & (X2)2 are the Chi squared for the variables 1 & 2 respectively (formatting issues prevented proper use of Greek letters for Chi sq) * v1 & V2 are the degrees of freedom (also refered to as df) respective to the variables 1 & 2
Can the F distribution be negative?
The F distribution can't be negative.
