Continuous Distributions Flashcards
Uniform distributions have a area of
1
Unusual distributions have and area of
1
Normal distributions have a area of
1
To find the area of a trapezoid
1/2(b+b)(h)
To find the mean of a uniform distribution use the formula
A+B/2
To find the standard deviation of a uniform distribution use the formula
Square root(b-a)sq/12
To find the height of the uniform distribution you use
1 over the base of the rectangle
1/b
To find the z score use the equation
Z=x-mean/standard deviation
To solve for area of normal distribution use
Normal cdf
To solve for x in the normal distributions you use
Inverse norm
To find z score you do
Invers norm
Mean 0
Standard deviation 1
Density curves are used to describe what kind of random variables
Continuous
No matter what shape of a density curve, the are underneath it must be equal to
1
Density curves are symetrical all the time or some of the time
Some time
In what kind o distribution is the mean half is half sum of the two endponts of the distribution
Uniform
