For each algebraic expression, select the property that could be used to solve it
2 answers:
Answer:
1.addition property of equality
2.distributive property of equality
3.multiplication property of equality
Step-by-step explanation:
We are given that some algebraic expression
We have to select the property that can be used to solve given algebraic expression.
1.
Using addition property of equality.
2.
Using distributive property of equality.
Cancel 6 on bot sides
3.
Using multiplication property of equality.
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Using the z-distribution, as we are working with a proportion, it is found that the 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.
<h3>What is a confidence interval of proportions?</h3>A confidence interval of proportions is given by:
In which:
is the sample proportion.
- z is the critical value.
- n is the sample size.
In this problem, the parameters are:
The lower limit of this interval is:
The upper limit of this interval is:
The 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.
More can be learned about the z-distribution at brainly.com/question/25890103