Answer:
Let x be the number of 3- point questions and y be the number of 5-points questions.
Step-by-step explanation:
The solution is 1/4 because 25/100 / 25/25 1/4
Answer:
−5x+27
Step-by-step explanation:
We have the following data:
Margin of Error = E = 2.7 % = 0.027
Sample size = n = 900
Proportion of adults in favor = p = 60% = 0.6
We need to find the confidence level. For this first we need to find the z value.
The margin of error for a population proportion is given as:

Using the values, we get:
As, seen from the z table, z=1.65 corresponds to the confidence level 90%. So, the answer to this question is option B