Opre homework 2

question 23

Question 24 We have two independent events: A and B. If P(A) = 0.2 and P(B) = 0.4, what is P(A|B)? O a. 0.08 O b. 0.6 O c. 0.4 O d. 0.2Delicious Candy markets a two-pound box of assorted chocolates. Because of imperfections in the candy making equipment, the actual weight of the chocolate has a Uniform distribution ranging from 31 to 32.5 ounces What is the probability that a box weighs less than 31.8 ounces? O a. 8 10 Ob. 7 15 Oc. 8 15 Od. 7 10Question 25 A manufacturer investigates a production line, which produces 5% defective parts. The manufacturer selects a sample of 10 parts from this production line. Define X as the number of defective parts in the sample. What is the variance of the number of defective parts in this sample? O a. 0.707 Page 3 O b. 0.689 O c. 0.5 O d. 0.475