Answer:
I'm pretty sure its 50.24. like 95%
(2x -5y) + (x+y) =
2x - 5y +x + y =
3x -4y
I believe it’s A but if i’m wrong i’m sorry
Answer:
The t distribution is used, because we have the standard deviation for the sample.
Step-by-step explanation:
When to use the z or the t distribution?
When we have the standard deviation for the population, we use the z distribution.
When we have the standard deviation for the sample, we use the t distribution.
In this question:
We have the standard deviation for the sample, which means that the t distribution is used.
Notice that in the first table, every time we increase x by 1, y consistently decreases by 2. This characterizes a linear function.