The mean price of a new laptop computer from Store #1 is $799.99, and they only sell two brands of computers. The mean price of a new laptop from another store is $679.99, and Store #2 sells 4 brands. What is the weighted mean average of a new laptop computer?

Question

anonymous · Answer

$739.99

agreene · Answer

If I'm understanding the question correctly...
$$[(799.99/2)+(679.99/4)]/2 = 284.996$$
or Approx $285

anonymous · Answer

no, that can't be right. the mean price for 1 laptop in each shop is the given, we just need to find the mean of those two.

agreene · Answer

Yes, except it asks for the weighted mean.