<image> The education authority of a certain region conducted an analysis of the mock exam scores. They randomly selected the scores of $$1000$$ students who scored between $$150$$ and $$450$$. Based on the scores of these $$1000$$ students, a sample frequency distribution histogram was drawn $$($$as shown$$)$$. The number of students with scores in the range of $$[300,350)$$ is ______ .