Achocolate company selects 50 random packages to check their weight. it finds that 2 packages have an incorrect weight. how many packages out of 2000 should the company predict have an incorrect weight.

80

Step-by-step explanation:

A company selects 50 random packages from which two of them have an incorrect weight. That is to say: 4% of the packages are incorrrect.

Now if the company selects 2000 packages, we could predict that 4% of them could be incorrect. We know that 2000×0.04 = 80.

Therefore, 80 out of 2000 packages are expected to have an incorrect weight.

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.