Answered

A dance studio has 40 nine-year-old children sign-up for ballet class. The studio owner decides to divide the children into two nine-year-old ballet classes: Class Alpha and Class Beta. If the studio owner wants each child to have a fair chance of being placed in either class, which of the following describes a method that cannot be used to help the studio owner place the children?

Answer :

Edufirst
This question cannot be open. It has to have a set of answer choices. There are many ways to make the division fairly and many to make it unfairly.

The fair divisions are supposed to be random, while the unfair division are those that are not random.

Some examples of not fair division are:

1) Separate the group by sex, this is one group of males and one group of girls.

2) Separate by weight

3) Separate by size

4) Separate by month of birth.

This should help you to find which of the statements from your list reflects a non fair division.
typicalronnie

I think the answer would be


B. Using a random number generator, assign each child a number, eliminating any duplicate numbers. After each child is assigned a number, list the assigned numbers in ascending order. Assign the children with the first 20 numbers on the ascending list to Class Alpha, and assign the children with the last 20 numbers on the ascending list to Class Beta.

I'M NOT 100% SURE but that would be my guess.

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