Write a function that takes a 1d array-type variable x as input parameter (list, tuple, or np. array), counts the number of elements in the array that are less than zero, and returns the number of elements found (n) and the fraction of the data that were less than zero (n / number of values in x). if the input array is empty (i. e., if len(x) is zero), return a value of -1 for each output parameter.

Aspeed limit sign that says "night" indicates the legal speed between sunset and sunrise.

William travels a lot on business purpose. he needs to regularly communicate with his business partner. he also needs to send out weekly reports to his boss while he is traveling. which web-based application best suits william’s needs? (social media, webmail, wiki) is the best web-based application for william. he can access this application via the internet using a (digital cable, fax machine, web browser).

What are the 4 basic items that are traded throughout the world?