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.
The cost of membership at local country club is $125 per family member per month. Each family also has to pay $75 in service fee
2 answers:
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