CHAPTER 5 Discrete Probability Distributions Identifying Probability Distributions. In Exercises 7-14, determine whether a prob- ability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. P(x) 7. Genetic Disorder Five males with an X-linked genetic disorder have one child each. The random variable x is the number of chil- dren among the five who inherit the X-linked genetic disorder. X 0.031 0 0.156 1 0.313 2 0.313 3 0.156 4 0.031 5 8. Male Color Blindness When conducting research on color blindness in males, a researcher forms random groups with five males in each group. The random variable x is the number of males in the group who have a form of color blindness (based on data from the National Institutes of Health) P(x) X 0.659 0 0.287 1 0.050 2 0.004 3 0.001 0+ 5 9. Pickup Line Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd put U and I together." The random variable x is the number of women Ted approaches before encountering one who reacts positively P(x) X 0.001 1 0.009 2 0.030 0.060 4 10. Fun Ways to Flirt In a Microsoft Instant Messaging survey, respondents were asked to choose the most fun way to flirt, and the accompanying table is based on the results. P(x) E-mail 0.06 In person 0.55 Instant 0.24 message Теxt 0.15 message 11. Fun Ways to Flirt A sociologist randomly selects single adults P(x) of three, and the random variable x is the num- that the most fun way to flirt is in for different groups who 0 0.091 say person ber in the group 1 0.334 (based on a Microsoft Instant Messaging survey). 2 0.408 3 0.166 12. Self-Driving Vehicle Groups of adults are randomly selected and arranged in P(x) of three. The random variable x is the num- groups who 0 0.358 that they would feel comfortable in a self- say ber in the group 1 0.439 driving vehicle (based on a TE Connectivity survey). 2 0.179 3 0.024 LO LO