​A scientist asked four of her dentist friends if they thought the new Brand X sugar-free gum that she developed was effective. Three responded​ "yes." The scientist used the results to write a TV advertisement claiming that ​"3 out of 4 dentists prefer Brand X sugar-free gum​." Is this a valid​ inference? Explain. Use pencil and paper. Explain all of the factors that are necessary for an inference to be valid.

Is the inference​ valid? Explain. Choose the correct answer below.

A.​Yes, because 3 dentists said yes out of 4 who were asked.

B. No, because 3 dentists said yes out of 7 who were asked.

C. No, because the dentists asked are not a representative sample of the population of dentists.

D.​Yes, because the dentists asked are a representative sample of the population of dentists.

​

the answer is c

Step-by-step explanation:

while four dentists were asked, and three recommended it, those 4 do not speak for the thousands of dentists out there, with a larger pool it may be proven, but the 4 dentists do not speak on behalf of all dentists.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|