What is the mean of x, x+3, x+6, x+9 and x+ 12 A. x+3 B. x+6 C. x+9 D. x+12
Answers
Answered by
3
Explanation:
Mean = sum of observation /no of observation
mean = x + (x+3) + (x+6) + (x+9) + (x+12) / 5
mean = (5x + 30) / 5
taking 5 common and then cancelling that 5 with the denomination we get,
mean = (x+6)
hope it helps you . And have a good day
Answered by
5
Answer:
B. x+6
Explanation:
mean=sum of all scores/total number of scores
=x+x+3+x+6+x+9+x+12/5
=5x+30/5
=5(x+6)/5
=x+6
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