For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below. residents and t is the number of years elapsed since 2006 f(3) = 2,459(0.32)
X=2 because first you have to combine like terms. Than you have to bring the Varible on one side. Finally you solve for the Varible and you get the answer2.
The equation for the grain size is expressed as the equality: Nm(M/100)^2 = 2^(n-1) where Nm = number of grains per square inch at magnification M. M = Magnification n = ASTM grain size number
Let's solve for n, then substitute the known values and calculate. Nm(M/100)^2 = 2^(n-1)
(log(33) + 2*log(270/100))/log(2) + 1 = n (1.51851394 + 2*0.431363764)/0.301029996 + 1 = n (1.51851394 + 0.862727528)/0.301029996 + 1 = n 2.381241468/0.301029996 + 1 = n 7.910312934 + 1 = n 8.910312934 = n
So the ASTM grain size number is 8.9
If you want to calculate the number of grains per square inch, you'd use the same formula with M equal to 1. So: Nm(M/100)^2 = 2^(n-1) Nm(1/100)^2 = 2^(8.9-1) Nm(1/10000) = 2^7.9 Nm(1/10000) = 238.8564458 Nm = 2388564.458