Write down two reasons for using statistical models
There are many reasons for using statistical models. Some examples include:
1) To simplify a real world problem
To improve understanding and describe a real world problem, for example understanding the relationship between height and weight in people.
2) To predict possible future outcomes
Explore the sensitivity of the system to changes in parameters
LD
Related Maths A Level answers
All answers ▸y = x*(x-2)^-1/2. Prove dy\dx = (x-4)/2*(x-2)^3/2
Event A: a customer asks for help. Event B a customer makes a purchase. We know: p(B) = 0.2 and p(A) knowing that he has asked for help is 75%. What is the probability of a customer to ask for help and make a purchase?
(a) Find the differential of the the function, y = ln(sin(x)) in its simplest form and (b) find the stationary point of the curve in the range 0 < x < 4.
Express 4sinx-cos(pi/2 - x) as a single trignometric function