Match these terms with their descriptions. 1. a portion of a large group random sample 2. choosing a sample so that every member has an equal chance of being chosen estimating from a sample 3. choosing a sample from people who are under 15 years old sample 4. using the responses of a small group to make conclusions about the large group. biased sample random sample estimating from a sample sample biased sample

The correct matches are-

1. a portion of a large group - Sample

Sample is a part of population, considered for surveys.

2. choosing a sample so that every member has an equal chance of being chosen - Random sample

Random sample is non biased way of sampling where each member has equal chances of participating in the survey.

3. choosing a sample from people who are under 15 years old - Biased sample

Biased samples produce biased results. These are based on specific criteria and are not random.

4. using the responses of a small group to make conclusions about the large group - Estimating from a sample

Estimations are rough conclusions made from collecting responses.

y=1/4x-4

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b