Plato !
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 the studio owner place the children?

it would be D

Step-by-step explanation:

Option C is the answer.

Step-by-step explanation:

The studio owner wants each child to have a fair chance of being placed in either class, so she must not do the following:

Option C is the answer.

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.

step-by-step explanation:

the answer is 128