Suppose a sample mean is distributed normally. if the sample size increases, what happens to the shape of the sampling distribution of the sample mean?

a. distribution becomes wider and flatter.

b. distribution becomes narrower and taller.

c. distribution remains the same.

d. distribution turns upside down and inside ou

(b)

Step-by-step explanation:

(b) is correct:  the distribution becomes narrower and taller.

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.