The average of all of them is the same as the average of the first and last, the same as the middle number in the group:
1 + n
Answer:
3.6
Step-by-step explanation:
Y=2x + 15
y = 11-x
In order to solve for y add/subtract the x terms to the other side
Answer:
The mean will decrease.
Step-by-step explanation:
Add them all up including 0.5 then divide by the total amount
then compare
This doesn’t make sense
You say 28 did biology, but then 15 did maths and biology, and 16 did physics and biology
15 + 16 is 31 ??
