Answer:
There are not 15 failures and 15 successes. A confidence interval can be computed by adding 2 failures and 2 successes .
Step-by-step explanation:
Given that
Survey asked by 40 people
6 said that they were very concerned.
So the following statements correctly describe the above problem
The correct statement is , There are not 15 failures and 15 successes. A confidence interval can be computed by adding 2 failures and 2 successes .
3x+1+52 = 180°
Remember, angles in a straight line must ALWAYS add up to 180°.