Answers

  • Brainly User
2014-12-27T21:50:19+05:30
Let the age of the excluded child be x
.Old mean= 10 
New mean=9
Mean= sum of observation/ total observations
10= sum of observations/ 5 
sum of observation= 10*5=50
new mean :
Mean= sum of observation/ total observations
9=50-x/4
9*4 =50-x
36=50-x
x=50-36
x=14
1 5 1
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  • Brainly User
2014-12-27T21:51:27+05:30
Value of deleted observation = n(mean) - (n-1)(new mean).
You get the answer as 5(10)-4(9) = 14 years.
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