What is the domain of the function?
P(x)=10 for x=1,2,3,4
and = 5-x otherwise?
What is the 10 doing there, please?
Consider the probability function. (Give your answers exactly.)
P(x) =
5 − x
10
, for x = 1, 2, 3, 4
(a) Find the mean.
(b) Find the standard deviation.
5 answers
I don't know, is the answer 5-10=5 for mean????
Can you please type in the definition of the function exactly as you are given? As it is, it is unclear as to what the function is.
Is the 10 a denominator of the fraction
(5-x)/10?
(5-x)/10?
Sorry, but this is the way it is written, that is why I do not understand it.