Answer:
B
Step-by-step explanation:
Our values are:
N = 100,000 (We assume it)
Proportion is p = 0.6
Margin of error (E) = 0.05
confidence-level (cl) = 0.95
Z-value = 1.96
We need to approach through Proportion,

Substituting,




I think maybe 3) would make the most sense because she wants a random sample of students and the other options are specific on the type of students.
Answer:
75
Step-by-step explanation:
We have a 90 degree angle and a 15 degree angle that add up to 105. The angle that is missing can be found by doing 180 - 105 = 75 (since it's a straight line). X is vertical from the 75 degree angle, so 75 is your answer.
2.25 = 225 / 100 ;
0.04 = 4 / 100 ;
But, 225 > 4 ; then, 225 / 100 > 4 / 100 ;
Bigger is 2.25 !