Question 56 Not yet answered Marked out of 1.00 In a collection of n documents, the TF-IDF of a word w that appears exactly once in each document in the collection is Write the numeric value using digits in the space provided below. Do not write words. P Flag question Consider two models A and B that each predict the same outcome on the same dataset. Which one of the following statements is true? Question 57 Not yet answered Marked out of 1.00 Select one: Flag question O a. If model A has better precision than model B, then model A is probably better. O b. If model A has better f1 score than model B, then model A is probably better. O cIf model A has better recall than model B, then model A is probably better. O d. If model A has better accuracy than model B, then model A is probably better. Which of the following graphs of data show(s) prominent seasonality? Question 58 Not yet answered (a) (c) Marked out of 1.00 500 Flag question oochool 450 footiolup strikes 4000- Man har ho 150 200 100 Day 100 Day 1960 1961 1960 1970 1975 1950 Year in (d) (e) - 100000 hsales Gert 200- May 100- 50000 1975 1980 1990 1900 1820 1960 1900 1985 1995 1985 Year 1940 Year Year (9) (h) 0 1600- 12000 180- Muhiluhu wwhhh BODO 100- 4000 1992 101 1980 1820 1840 100 100 1000 100 Year 1993 Year 1970 Year Select one or more O a. a b. 9 . O d. b O e. h Of