Question

Based on past experience, an architect has determined a probability distribution for the number of times a drawing must be examined by a client before it is accepted. Prob. Dist. for Number of Times examined X 11 2 3 Pox) 0.15 0.17 0.32 4 0.18 5 0.18 What is the expected number of times a drawing must be examined by a client before it is accepted? Round your answer to 2 decimal places. Answer How to Enter) 1 Point Tables Keypad Keyboard Shortcuts Next Prev

Answer 1

$E(x)=\sum xp(x)$

Expected Number = 1 * 0.15 + 2 * 0.17 + 3 * 0.32 + 4 * 0.18 + 5 * 0.18
Expected Number = 3.07

Therefore, the expected number of times a drawing must be examined by client before it is accepted is 3.07