In a building construction project, the on-time completion of the building requires the successive completion of a series of activities. Define: E= excavation completed on time; and P(E)=0.8
F= foundation completed on time; and P(F)=0.7
S=superstructure completed on time; and P(S)= 0.9

Assume statistical independence among these events.

a. Define the event C= (project completed on time) in terms of E, F and S. Compute the probability PC).
b. Define the event G =(excavation will be on time and at least one of the other two operations will not be on time) in terms of E, F and S and their complements. Calculate P(G).
c. Define the event H =(only one of the three operations will be on time) in terms of E, F and S and their complements. Determine the probability P(H).

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.