Describe the mistake each student made. Explain what each student needs to do to fix their mistake.

Create your own quadratic equation, and explain how to use the quadratic formula to solve it. Be specific, using Latex: a, b, and c of your equation and giving the solutions to the equation you chose.

a is the answer

Step-by-step explanation:

15/64 = 23.4 %

Step-by-step explanation:

Let's consider the first two selections. Let's call B the case in which she extracts a boy and G the case in whish she extracts a girl.

For each selection, the probabilty of event B (selecting a boy) is

While the probability of event G (selecting a girl) is

We are asked to find the probability that the first two events are B and then G:

In the first two selections, we have 4 possible combinations:

BB, BG, GB, GG

The probability for each combination is given by:

The second one is the probability we are searching for, so the probability that she will select a boy first and then a girl is 15/64, or 23.4%.