4. The mean score of 25 observations is and the mean sco
55 observations is 60. Determine the mean scored
observations.
Answers
Answered by
3
Answer:
Sum of value =25×80+75×60=6500
Number of observation =25+75=100
Combined mean =
Number of observations
Sum of value
=
100
6500
=65
Answered by
0
Answer:
80
Step-by-step explanation:
sum the 25+55 fkvfI'mjgxkheghfhlckhcngtjgkhfhDJh't
guvNVfxYbxj
thjkk
ukkbg
jjknhb
jjkkbbljj
dbyhfsctugjgkgnh'gkbghgk
gjbfc
Similar questions