It truly depends on the ticket you got.
For 4x^2y over 2x^8y^4 try 2 over x^6y^3
mu = 1100 = population mean
sigma = 275 = population standard deviation
x = 1400 = raw score
z = z score
z = (x-mu)/sigma
z = (1400-1100)/(275)
z = 300/275
z = 1.0909090909091 approximately
z = 1.09
Convention is to round to two decimal places so that you can use a Z table to look up the area under the curve (which helps determine probability).
The positive z score is due to Paula's raw score being above the mean.
It is the best option, 6 Teaspoons.
Hello,
If an equation is an identity, then every value of the variable makes the egality true.
Generaly we resolve an equation in R.
In this case Sol=R