Mean height of 8 student is 152cm
Two student join the group heights are 143cm and 156cm New mean heaught is equal to
Answers
Answered by
0
Answer:
151.7 cm.
Step-by-step explanation:
Mean height of 8 students = 152cm.
Hence total height of 8 students = 152*8 = 1218 cm.
New total height after 2 joinees = 1218+ 143+ 156 = 1517 cm.
New mean = 1517/10 = 151.7 cm.
Answered by
2
Answer:
Step-by-step explanation:
Mean= Sum/Total obs.
152=X/8
1216=X
The new sum of all children's height= X+143+156
=1216+143+156
=1515
New mean=1515/10
151.5
Therefore, the new mean is 151.5cm.
PLs mark the answer as the brainliest.
Similar questions