The skin's dermis is made of layers of cells, connective tissue and several structures that aid in maintaining its function. These structures include blood vessels, hair follicles, lymph vessels and glands.
XnY one color blind boy. 1  Probability of having a color blind daughter is (1/2 x 1/2) or 1/4 or 25% (0.25) This is because both sex and colorblindness are involved in the solution.  The probability that their first son is color blind is 50% (0.50). In this question only males are part of the solution.
Discarding the negative sign, then,you look up (in Table E.14) the value Z = 1.00 and find the probability to be 0.3413. Hence, fromstep 3, the probability that the part can be assembled in between 69 and 81 seconds is 0.3413 +0.3413 = 0.6826. This result is displayed in Figure 6.9a. ZX =â=â=âÂµÏ69 756100.