Concept explainers
To find: The percent of the area and interval under the normal curve.
Answer to Problem 7CA
Another interval with same percent of area is
Explanation of Solution
Given:
Calculation:
In this question,
Find the percent of area under shaded region, which is the probability
So, for that, find the
Thus the required probability is given by the value of
Now, use the standard normal table to find
Thus,
And, hence
The percentage is found by turning the above decimal into percent.
Hence,
Another interval with same percent of area is
Conclusion:
Hence,
Another interval with same percent of area is
Chapter 11 Solutions
BIG IDEAS MATH Algebra 2: Common Core Student Edition 2015
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