The new mean is 66.09
<u>Explanation:</u>
Mean weight of 20 students = 65kg
One student with 88kg entered the room.
New mean = ?


The above equation can further be written as:

New mean = 
= 66.09
Therefore, the new mean is 66.09
Answer:
the C one is 18in and the E one is 12in
Step-by-step explanation:
Answer:
D B A C
Step-by-step explanation:
Answer:
i think the second one
Step-by-step explanation:
i think it would be the smartest thing to pick
Answer:
r= 0.87
Step-by-step explanation:
It has the strongest correlation, which means it is closest to the line.