Answer:
There is a non-removable discontinuity at x = 3
Step-by-step explanation:
We are given that
We have to find true statement about given function.
=
It is not removable discontinuity.
x-3=0
x=3
The function f(x) is not define at x=3. Therefore, the function f(x) is continuous for all real numbers except x=3.
Therefore, x=3 is non- removable discontinuity of function f(x).
Hence, option B is correct.
Answer:
And we can find this probability using the normal standard distribution and we got:
Step-by-step explanation:
For this case we have the foolowing parameters given:
represent the mean
represent the standard deviation
the sample size selected
And for this case since the sample size is large enough (n>30) we can apply the central limit theorem and the distribution for the sample mean would be given by:
And we want to find this probability:
We can use the z score formula given by:
And we can find this probability using the normal standard distribution and we got: