Step-by-step explanation:
Let the width=x
Length =6x-4
As we know that in a rectangle
- Substitute the values
- Here a=6, b=-4, c=-20.
- use quadratic formula
A finance magazine did a survey and found that the average American family spends $1,600 on a summer vacation. If the distributi
on is normal with standard deviation $411, find the amount a family would have spent to be the 80th percentile. PreviousNext
1 answer:
Answer:
<h2> $1945</h2>Step-by-step explanation:
Let X be the normal distribution
Kindly find attached a detailed annotation of the solution to the problem.
in the attached document, we found the value that corresponds to 80th percentile, hence we found the value such that the probability that the variable x is lower than this value is 0.8.
Also, from the calculation, we found that the value which corresponds to the 80th percentile is $1945
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so, you're correct, it is the Food industry, and it went down from 2.7 to 2.5, well, so it really went down 2.7 - 2.5 or 0.2.
well, if we take 2.7 to be the 100% from that row, what is 0.2 off of it in percentage format?