ANSWER
D.
EXPLANATION
Marjorie bought a total of 24 bottles of juice.
If she opens and drinks 2 bottles each day, then
at the end of the first day,the number of unopened bottles will be;
at the end of the second day,the number of unopened bottles will be;
at the end of the third day,the number of unopened bottles will be;
At the end of d days,the number of unopened bottles will be;
The correct choice is D
The ways to collect data in a sample include:
- Use of questionnaire.
- Through observations.
- Through surveys.
<h3>What is a sample?</h3>
It should be noted that a sample simply means a subset of a population that has the characteristics of the entire population.
In this case, the ways to collect data in a sample include the use of questionnaire, through observations, and through surveys.
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Learn more about sampling on:
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Answer:
We need at least 601 incomes.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
How many such incomes must be found if we want to be 95% confident that the sample mean is within $500 of the true population mean?
We have to find n, for which 
. So
Rounding up
We need at least 601 incomes.
Answer:
HALLO
Step-by-step explanation:
It is! When you're doing a fraction specifically like that, the denominators cancel out. Therefore you can get rid of the 12. It just becomes 21/7, which as you know is 3.
Hope that helps :)
