Alice Zhong is the VP of operations at Pearl Financial Services. She wants to measure customer satisfaction after a new website and other changes were introduced a few months ago. For this purpose, she uses random five-digits numbers from the website random. org (which offers true random numbers on the Internet). This is an example of .a. disproportionate systematic sampleb. disproportionate stratified samplec. proportionate stratified sampled. proportionate systematic samplee. proportionate cluster sampling

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

where is the diagram? shown below where? ?

step-by-step explanation:

b. f(x) = –√x + 3this is the correct answer