Z Score Flashcards
1
Q
Continuous uniform distribution y=?
What type of areas are under the curve?
A
y=1/d-c height
Rectangle
2
Q
Pdf=?
Median,miu(average)
Sigma(variance)
Formulas
A
Median=(c+d)/2=miu
Sigma^2=(d-c)^2 /12
3
Q
Normal distribution z formula
A
Z=(x-miu)/sigma
4
Q
Binomial random variable x (miu z and sigma) formulas
A
Miu=np
Sigma=np(1-p)
Z=(x-miu)/sigma
5
Q
What is z-score?
A
It measures how far that individual score deviates from the mean in terms of standart deviation.
6
Q
Z and x equations in z-score
A
Z=(x-miu)/sigma
X=miu+zsigma
7
Q
Random sample mean and standart deviation equations
A
Miu(mean)=np
Sigma=sqrt(npq)
8
Q
A