Write a function called normalizegrades that receives a row array of test scores of arbitrary length and positive values, and produces two outputs: a row array array containing the grades normalized to a linear scale from 0 to 100 (i. e. grades are normalized if the maximum grade equals 100). hint: use the internal function max. the average of the normalized grades. hint: use the internal function mean. restriction: loops may not be used. for example, following code: scores=[90, 45, 76, 21, 85, 97, 91, 84, 79, 67]; [normscores, average]=normalizegrades(scores) produces:

When early motion pictures played in movie theaters, they were often accompanied by live organ or piano music. which of the following are the most likely reasons that this happened? (select all that apply). the music was provided to distract audience members from the loud sounds made when filmstrips were changed. the music accompanied the movies because the movies were silent and audiences were used to hearing music during plays in theaters. the music usually was played before, and sometimes after the movie, as an alternative form of entertainment. the music viewers to interpret the dramatic action in the films.