Answer:
The t-distribution is used.
Step-by-step explanation:
When we dont know the standard deviation of the population, we use the t-distribution(t-table).
Otherwise, the z-distribution(z-table) is used.
So the answer to this question is the t-distribution.
Answer:
Yes it does. It is 1.
Step-by-step explanation:
Subtract 8 from both sides then divide both sides by -8 and you get 1.
Answer:X would be 2 so The answer is c
Step-by-step explanation:
Answer:
y=5x+21
Step-by-step explanation:
I included the work in the picture. lmk if you need more explaining

The answer is A (2.5, 8, 15), since these integers are greater than 2.
Hope this helps. - M