2. Bar Chart

The following is the plot of marks vs. year for a subject in a question paper. 
>> year=[2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022];
>> marks=[5,5,8,10,7,10,8,8,5,12,6,9,10];
>> bar(year,marks)
>>

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