Answer: 5/2
Step-by-step explanation:
Answer: 0.02
Step-by-step explanation:
Given: Sample size : 
The population proportion 
Then,
The formula to calculate the standard error is given by :-


Hence, the standard deviation of the sample proportions (i.e., the standard error of the proportion) is <u>0.02</u>.
We can use vertical opposite angles. Which means the opposite angles where 2 lines intersects is the same.
3x + 50 = 6x - 10 (vert. Opp. Angles)
3x = 6x - 60
-3x = - 60
X = 20°