Handbook of Civil Engineering Calculations

TABLE 21. Time and Workforce Requirements for a Technical Project Activity, Duration, Workers Fig. 17 days required 0-1 4 3 1-2 ...

Project time, days (b) Workforce requirements based upon late event times FIGURE 18 Construct the schedule shown in Fig. 19. Not ...

Project time, days FIGURE 19. Workforce requirements based on project schedule. Statistics, Probability, and Their Applications ...

Project time, days FIGURE 19. Workforce requirements based on project schedule. Statistics, Probability, and Their Applications ...

TABLE 22 (2) (1) Number of (3) (4) (5) (6) Month units soldX d = X-41 d^2 dA=X-40 d^2 A 1 32 -11 121 -8 64 2 49 6 36 9 81 3 51 8 ...

values of Xincrease by a constant /z, then X increases by h, but s remains constant. Where X has a nonintegral value, the use of ...

this class, and then assign integers to the remaining classes in consecutive and ascending order, as shown in column 4 of Table ...

Compute the number of possible assignments if Smith is selected If Smith is assigned to machine A, the number of possible assig ...

Calculation Procedure: Compute the number of possible committees in the absence of any restriction Since the members will be of ...

PROBABILITY OF A SEQUENCE OF EVENTS A box contains 12 bolts. Of these, 8 have square heads and 4 have hexagonal heads. Sev- en b ...

time for which the product is held in one department has no effect on the time it spends in any subsequent department. What is t ...

type A units = C 53. Summing the probabilities, we find P(3) = C 53 (9/14)^3 (5/14)^2 = 5!/(3!2!)^3 (5/14)^2 = 0.3389. Write th ...

positions, the number of arrangements that can be formed is C 83. Thus, P(9) = C 83 (0.35) 4 (0.65) 5 = 56(0.35) 4 (0.65) 5 = 0. ...

Compute the probability that X < 3 Use the relation P(X) = n^l\em(^\ where e = base of natural logarithms = 2.71828 Thus, e ...

Calculation Procedure: Compute the values of z corresponding to the specified boundary values of X If a random variable X is co ...

Find the values ofA(z) Let A(ZJ) = area under probability curve from centerline (where X= JJL) to X=X 1 ; this area = P(IJL < ...

FIGURE 21 Find the value of A(z) Refer to the table of areas under the normal probability curve, and take the absolute value of ...

Calculation Procedure: Write the equation of cumulative probability Refer to the calculation procedure on the normal distributi ...

In many instances, it is impossible to evaluate a parameter precisely, for two reasons: The population may be so large as to pre ...

The quantity JJL^ is an index of the diversity of the sample means. As the sample size in- creases, the samples become less dive ...