The mean of 100 values is 45. If 15 is added to each of the first forty values and 5 is subtracted from each of the remaining sixty values, the new mean becomes
Answers
Answered by
5
Answer:
48
Step-by-step explanation:
The mean of 100 values is 45
TOTAL VALUES = 45X100 =4500
values added =15 x40 =600
values subtracted =5x60 =300
so new total =4500 +600 -300 =4800
NEW MEAN = 1800/100 =48
Answered by
3
The mean of 100 values is 45
TOTAL VALUES = 45X100 =4500
values added =15 x40 =600
values subtracted =5x60 =300
so new total =4500 +600 -300 =4800
NEW MEAN = 4800/100 =48
Similar questions