If the three integers are 
, then we have
We can combine the fractions on the left side:
A variable is a letter that replaces an unknown number.
Answer with explanation:
A x% confidence interval interprets the percentage of certainty that a person can believe that the true population parameter.
It is also represented as Point estimate ± Margin of error
Confidence level is proportional to the Margin of error.
- As confidence level increases the error bound increases that makes the confidence interval broader.
- As confidence level decreases the error bound decreases , making the confidence interval narrower.
Answer: A= 1/2bh
The b is for base and the h is for height
