calculate can you help me to find this answer
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mean = 11
9+x+14+18x+x+8+10+4÷9 => 63 + 3x
no. of observation = 9
mean = sum of observation ÷ no. of observation
11= 63÷9 +3x ÷9
11-7 = x÷3
x=3×4
x= 12 answer
9+x+14+18x+x+8+10+4÷9 => 63 + 3x
no. of observation = 9
mean = sum of observation ÷ no. of observation
11= 63÷9 +3x ÷9
11-7 = x÷3
x=3×4
x= 12 answer
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