Answer:
The answer is "0.869"
Step-by-step explanation:
Number of sample 
Number of correct response 
Calculating the Sample proportion:
Formula:


Step-by-step explanation:
Option D is the correct answer because we will cross multiply
4/6 = 9/x
4x = 54
X = 27/2
Answer:
±
Step-by-step explanation:
We need to find
.
Now, we know that
and 
Therefore:
±
Summarizing, the real square roots of 144 are ±
Answer:
the answer is D
Step-by-step explanation: