The finishing process on new furniture leaves slight blemishes.The table below displays a manager's probability assessment of the number of blemishes in the finish of new furniture.
On average,how many defects would we expect on a piece of furniture?
A)0.28
B)0.85
C)1.44
D)0.77

Question

The finishing process on new furniture leaves slight blemishes.The table below displays a manager's probability assessment of the number of blemishes in the finish of new furniture. 
On average,how many defects would we expect on a piece of furniture?
A)0.28 
B)0.85 
C)1.44 
D)0.77

Quizplus · Accepted Answer

To find the expected value, we multiply each probability by its corresponding value and then sum up the products. 
Expected value = (0 x 0.05) + (1 x 0.20) + (2 x 0.30) + (3 x 0.30) + (4 x 0.10) = 1.44 defects. Therefore, the answer is C.

The Finishing Process on New Furniture Leaves Slight Blemishes