Answer:
6(3y2−2y−2)3y−2
Step-by-step explanation:
Using the z-distribution, it is found that the 90% confidence interval for the true proportion of club members who use compost is (0.392, 0.508).
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:

In which:
is the sample proportion.
In this problem, we have a 90% confidence level, hence
, z is the value of Z that has a p-value of
, so the critical value is z = 1.645.
The estimate and the sample size are given by:

Hence, the bounds of the interval are:


More can be learned about the z-distribution at brainly.com/question/25890103
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We use letters to substitute for unknown numbers. I hope this helps. :)
You should tell your mom to bake 8 cupcake batches
Answer:
The first one is a the second one is b
Step-by-step explanation: