Answer:
32
Step-by-step explanation:
since there are 4 parts, multiply 8 by 4
Given:





To find:
The variance. of combined set.
Solution:
Formula for variance is
...(i)
Using (i), we get




Similarly,




Now, after combining both sets, we get




Therefore, the variance of combined set is 15.4.
Answer:
STUDY OR TUTOURStep-by-step explanation:
Answer:
46,100
Step-by-step explanation: