There are 15 girls in the classroom
Start with

Subtract 15 from both sides:

Divide both sides by 2a:

Answer:
32% of the balls are yellow
Step-by-step explanation:
96 of 300 = 32%
Answer:
The appropriate test to determine if there is an association between being a registered nurse and passing a cultural competency exam among a group of 987 randomly selected hospital employees is a:
Chi-square Test.
Step-by-step explanation:
The Chi-Square Test uses either a diagram (like a scatter plot) or a hypothesis test to show the existence of an association between two variables or statistically demonstrate that a relationship exists between the two variables. Using the computed t-score, the significant association between two categorical variables can be measured and established.