Question

in a linguistics course, the professor asked the students to list all the languages they speak besides english. the table lists the answers of eight students. using the table, complete the following. (a) choose a set that is equivalent, but not equal, to the set of languages spoken by salma. select (b) choose a set that is equal to the set of languages spoken by lena. select (c) find two students whose sets of spoken languages are neither equivalent nor equal. select and select student set of spoken languages yoko {welsh, arabic, german} charmaine {czech, zulu, japanese, oromo} lamar {urdu, zulu, latin, vietnamese, mandarin alonzo {ethiopian, mandarin} lena {latin, arabic, german} salma {urdu, russian, french, danish} david {arabic, latin, german} amanda {urdu, ethiopian}

Explanation:

(a) Equivalent sets have the same cardinality (number of elements) but different elements. Salma's set has 4 languages, so any 4-language set that does not match hers works.
(b) Equal sets have identical elements. Lena's set {Latin, Arabic, German} is identical to David's set.
(c) Two sets are neither equivalent nor equal if they have different cardinalities and no shared element overlap that would make them equivalent. Yoko's set has 3 languages, Alonzo's has 2, and their elements do not match, so they meet this condition.

Answer:

(a) Any set with the same number of unique languages as Salma's set (4 languages) that is not exactly {Urdu, Russian, French, Danish}, e.g., {Czech, Zulu, Japanese, Oromo} (Charmaine's set)
(b) {Arabic, Latin, German} (David's set)
(c) Example: Yoko and Alonzo