Mean of 100 observations is 15 and mean of 150 observations is 16. Find mean of 250 observation
Answers
Answered by
0
Answer:
If the mean =
Also,
Then mean of
will be,
- As every equations are again 50% of the original number, so the given question's answer will be 18 as 100+50=150____[16]
150+50=200_____[17]
200+50=250______[18]
Answered by
0
Step-by-step explanation:
mean of 100 observation=15
total of 100 observation=100×15=1500
again, mean of 150 observation=16
total of 150 observation=150×16=2400
now mean of 250 observation=(1500+2400)/250
=3900/250=15.6
Similar questions