Answer:
37.5
Step-by-step explanation:
225÷6........................................
Answer:
the 95th percentile for the sum of the rounding errors is 21.236
Step-by-step explanation:
Let consider X to be the rounding errors
Then; 
where;
a = -0.5 and b = 0.5
Also;
Since The error on each loss is independently and uniformly distributed
Then;

where;
n = 2000
Mean 







Recall:



For 95th percentile or below





From Normal table; Z > 1.645 = 0.05




the 95th percentile for the sum of the rounding errors is 21.236
So with this, you'll be using a proportion to solve it. And here's what your equation will look like:

Firstly, you'll need to cross-multiply. Your equation will look like this: 
For this, all you need to do is square root, and your answer is
, however this answer can be simplified further.

In short, your answer is 
Answer:
The median grade would be 89
Step-by-step explanation:
To find the median, first put the numbers all in ascending order.
79, 80, 86, 92, 95, 96
Now isolate the middle term or terms. Since there is an even amount of numbers, we pick the two in the middle. To find the median, we take an average of those terms.
(86 + 92)/2 = 89