Answer: 18.36
Step-by-step explanation:
Replace "z" with "2":
.
When quantities are in a proportional relationship, they are related to each other by a multiplicative constant. That is the case for selections F, G, J, but not the case for selection H.
You are asked to find the relationship that is NOT a proportional relationship. The appropriate choice is ...
H. y = 1/2 + x
Step 2 is wrong and i don't know the other question
Answer:
116 students
Step-by-step explanation:
The standard deviation for a proportion is:

For any measured sample proportion x, the z score is given by:

The population proportion is 0.53
At the 14th percentile, the corresponding z-score is z =-1.08.
Since 0.48 is at the 14th percentile, the standard deviation is:

Therefore, the sample size 'n' is given by:

The sample size must have been of 116 students.