Answer:
Step-by-step explanation:Hello!
X: number of households in a region that do some or all of their banking on the internet.
The proportion of households is p=0.41
n= 1000
For this variable there are two possible outcomes, the household either "does some or all baking online" (success) or "does no make banking online" (failure).
The number of repetitions is fixed n= 1000 households.
Assuming each household is independent of the others and the probability of success p=0.41 is the same for all households, then:
X~Bi(n;p)
The mean for a variable with binomial distribution is:
E(X)= n*p= 1000*0.41= 410
The expected value of households that do some or all banking online is 410.
I hope it helps!
