Next THREE questions are based on the following information The expected number of days to completion for a different project is 3.85 days, E(x) = 3.85, with a variance of 1.35, var(x) = 1.35. The project cost is made up of a fixed cost of $50,000, plus $8,500 for each day taken to complete the project.

11 The expected value of the project cost is: a $84,360 b $83,815 c $83,270 d $82,725

12 The variance of project cost is: a 97537500 b 85172400 c 61475 d 11475

13 The standard deviation of project cost is: a $107.12 b $247.94 c $9,228.89 d $9,876.11

14 In a binomial distribution, the trial in the random experiment is repeated 60 times and the probability of success is 0.45. The expected number of successes is, a 27 b 29 c 31 d 32

15 In the previous question the variance of the number of successes is: a 13.65 b 14.85 c 15.25 d 16.15

16 If you toss a balanced coin 40 times, the probability of getting 20 tails is: a 0.1254 b 0.1881 c 0.2821 d 0.5

17 If you toss a balanced coin 40 times, the expected number of tails is, a 22 b 20 c 18 d 16

#### Top Answer

11) d $82,725 12) a 97537500 ... View the full answer