In 1935, harvard linguist george zipf i wanted out that the frequency of the kth most frequent word in a language is roughly proportional to 1/k. this implies that the second most frequent word in a language has a frequency of one half that of the most frequent word, the third most frequent word has a frequency of one third that of the most frequent word, and so on. a distribution that follows this rule is said to obay zipf's law.

zipf's lawhas been observed not only in word distributions, but in other phenomenona as well, such as populations in a city.

the frequency of the third most frequent word in the brown corpus is that of the most frequent word.

a. 41%
b. 34%
c. 33%
d. 50%

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?

This circle is centered at the origin, and the length of its radius is 6. what is the circle's equation? a. x^2+y^2=36 b x^2+y^2=6 c x+y=36 d x^6+y^6=1