We often use sampling in conjunction with deciding the quality of entire shipments.Suppose a shipment of 400 components contains 68 defective and 332 non-defective computer components.From the shipment you take a random sample of 25.When sampling with replacement (so that the p = probability of success does not change), note that a success in this case is selecting a defective part.

1The mean of this situation is?

a.12.500

b.8.173

c.2.500

d.4.250

2. The P(X<6)=?

a. 0.242

b. 0.182

c. 0.758

d. 0.600

3. The P(X4)=?

a. 0.622

b. 0.750

c. 0.424

d. 0.576

4. The Standard deviation of this situation is?

a. 3.767

b. 2.811

c. 1.878

d. 2.294