A Color-Blind Man and a Woman with Normal Vision Whose

question 27

Multiple Choice

A color-blind man and a woman with normal vision whose father was color blind have a son.Color blindness, in this case, is caused by an X-linked recessive gene.If only the male offspring are considered, the probability that their son is color blind is

• A)0.25 (or 25%).
• B)0.50 (or 50%).
• C)0.75 (or 75%).
• D)1.00 (or 100%).
• E)none of these.

---

Definitions:

Voting Paradox

is a situation in social choice theory where collective preferences can be cyclic (A is preferred to B, B is preferred to C, and C is preferred to A), despite the individual preferences being consistent.

Majority-Rule Voting

A decision-making process where the option that receives more than half of the votes is chosen, commonly used in democratic systems and organizations.

Voting Paradox

A situation in social choice theory where collective preferences can be cyclic (i.e., not transitive), even if the preferences of individual voters are not, leading to a lack of consistent aggregation of individual preferences into a coherent group order.

Impossibility Theorem

A principle, also known as Arrow's impossibility theorem, stating that it is impossible to devise a social welfare function that fairly ranks societal preferences in the presence of three or more options.