Which of the following R functions displays a basic histogram for a data variable? Question 12 Not yet answered Marked out of 1.00 Select one: O a. aes Flag question O b. hist O c. plot O d. barplot Question 13 your ID number is Not yet answered Marked out of 1.00 Answer: Flag question If the Euclidean distance between two vectors of standardized data is 0, then the value of the correlation between them is Question 14 Not yet answered Answer: Marked out of 1.00 Flag question Consider a classification model that separates samples from people as "disease" or "not disease." If you lower the classification threshold, what will happen to recall? Question 15 Not yet answered Marked out of 1.00 Flag question Select one: O a definitely increase O b. definitely decrease O c. probably decrease O d. probably increase