The mean of 12+x , 14+2x , 16 , 18+x , 20 , 22-x and 24-3x is :
Answers
Answer:
18
Step-by-step explanation:
Add all the given term, after that x will cancel out by respective sign. Then after divide the sum from 7, because total no. Of term is 7.
You'll get your answer.
Given : 12+x,14+2x,16,18+x, 20,22-x and 24-3x
To Find : Mean
Solution:
Mean = Sum of all observations / number of observation
12 + x
14 + 2x
16
18 + x
20
22 - x
24 - 3x
______
126 + 4x - 4x = 126
Sum of all observations = 126
Number of observation = 7
Mean = 126/7 = 18
The mean of 12+x,14+2x,16,18+x, 20,22-x and 24-3x is : 18
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