460/12 = 33.3 so about 32 trays if the smallest and 33 as the answer but best would be 33
OK
The first one would be
8.34625
The second one would be
22.89104
H0P3 It H3LPS :)
The graph that does not show Y or X
Using addition of variables, it is found that the mean of S is of 73 and the standard deviation is of 8.5.
<h3>What happens to the mean and the standard deviation when two variables are added?</h3>
- The mean is the sum of the means.
- The standard deviation is the square root of the sum of variances.
In this problem, for variables A and B, we have that:


Variable S is the sum of A and B, hence:


The mean of S is of 73 and the standard deviation is of 8.5.
More can be learned about addition of variables at brainly.com/question/26156502
Answer:
OPTION C
Step-by-step explanation:
We know that 
Also, 
Using the above two results, we can say that:

(Using (ii) result)

Hence, OPTION C is the correct answer.