A bag contains 5 yellow marbles and 10 blue marbles. If a representative sample contains 2 yellow marbles, then how many blue marbles would you expect it to contain? Explain. Because the ratio of yellow marbles to blue marbles is
in the population, the expected number of blue marbles is times the number of yellow marbles in the representative sample.
There should be blue marbles.

Ratio of yellow marbles to blue marbles = 1 / 2

Blue marbles are 2 times of yellow marble

Number of expected blue marble = 4

Step-by-step explanation:

Given:

Total number of blue marble = 10

Total number of yellow marble = 5

Chosen marble = 2 yellow

Find:

1. Ratio of yellow marbles to blue marbles.

2. How many times blue marble from yellow marble.

3. Number of expected blue marble.

Computation:

1. Ratio of yellow marbles to blue marbles = Total number of yellow marble / Total number of blue marble

Ratio of yellow marbles to blue marbles = 5 / 10

Ratio of yellow marbles to blue marbles = 1 / 2

2. Ratio of yellow marbles to blue marbles = 1 / 2 .

So, Blue marbles are 2 times of yellow marble

3. Number of expected blue marble = 2 × Number of expected blue marble

Number of expected blue marble = 2 × 2

Number of expected blue marble = 4

the solution is 12x-6y

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844