As part of a statistics project, a teacher brings a bag of marbles containing 500 white marbles and 300 red marbles. she tells the students the bag contains 800 total marbles, and asks her students to determine how many red marbles are in the bag without counting them. a student randomly draws 150 marbles from the bag. of the 150 marbles, 53 are red. the data collection method can best be described as census clinical study survey controlled study

We know that a SURVEY is an general process to investigate the features of a population by gathering data from samples of entire population and estimate number of a particular feature by using statistical techniques.

Given  : As part of a statistics project, a teacher brings a bag of marbles containing 500 white marbles and 300 red marbles. She tells the students the bag contains 800 total marbles, and asks her students to determine how many red marbles are in the bag without counting them.

A student randomly draws 150 marbles from the bag. Of the 150 marbles, 53 are red.

We can see that teacher has given marbles of different colors of and ask to  determine number of red marbles on the basis of characteristic probability of red marbles.

The data collection method can best be described as survey because students has to determine the number of red marbles by observing the probability of red marbles from the sample of 150 marbles drawn by him.

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step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.