Answer:
3/10
Step-by-step explanation:
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The type of sampling used here is Stratified random sampling. This is used so that no contestant knows when to prepare and to test if they are actually ready for the contest.
In a randomized block design, it is expected treatments are randomly assigned within each block.
<h3>What does a randomized block design imply?</h3>
- Subjects are divided into blocks based on a specific features such as age, gender, education, etc.
- Within each block subjects that receive treatment and does who do not are randomly assigned.
- The treatment in all blocks is the same. For example, if the purpose is to study the effect of medicine all treatment subjects should receive the same medicine and dose.
<h3>What is the purpose of this design?</h3>
The purpose is to minimize the effect of certain factors such as age.
Based on the above, it is expected in this experiment the treatment is randomly assigned to a specific number of subjects within each block.
Learn more about experiment in: brainly.com/question/11256472
We can make a proportion here, 8/16, where the proportion is x/y. We can make another proportion that says 16/y, and y would be 32, because twice the number of x is y.
The area is 50.214 cm2
~Hope this helped~
