Answer:
about 2.47
Step-by-step explanation:
Your calculator will tell you ...

Answer:
Following are the responses to the given question:
Step-by-step explanation:
Mean Absolute Deviation MAD
Mean squared error
linear trend equation is 

Naive method

Please find the attached file.
Answer:
the 2nd graph
*this is my first time answering a question xd*
A-4b that’s my answer hope this help