360 - (170 + 80)
= 360 - 250
= 110
MAJ = 110/2 = 55
answer
55
Let the missing number be x
Mean is the total sum of data over the number of data therefore,
(11+20+x+3+1) / 5 = 9
Then simplify
(35 + x) / 5 = 9
Then multiply 5 to both sides
35 + x = 45
Then subtract 35 to both sides to find x
X= 10
Hope this helps!
Answer:
9
Step-by-step explanation:
(9*3) = 27 which is 20 more than 7
