Answer:
you need to put the table
Step-by-step explanation:
The mean is 7.5 you add up all the numbers and then divide by the amount of numbers there is
I think the answer is 2.8
I don't understand your language and I don't know which language is this but I try to answer your question. 3-1000-3*100*4*1
3-1000-1200
3-2200
=-2197
