In the following situation, the sampling frame does not match the population, resulting in under coverage. give examples of population members that might have been omitted.
the population consists of all 250 students in your large statistics class. you plan to obtain a simple random sample of 30 students by using the sampling frame of students present next monday. (select all that apply.)
--students who are not taking statistics cannot be sampled.
--students who are on a school trip cannot be sampled.
--dropouts cannot be sampled.
--students who are skipping class cannot be sampled.
--home-schooled students cannot be sampled.
--students who are out sick cannot be sampled.
ok, i thought it was all of them because i believed it meant that anyone who would not be in the stats class on monday was out of the sampling frame. however, when i entered that, it was incorrect.

$9.41

step-by-step explanation:

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1