Determining Data Mode in Bar Charts, Line Charts and Grouped Data. Self-Ability Test 2

Self-Ability Test 2, Mathematics for Vocational High School Grade 11 Erlangga Publisher Merdeka Curriculum Page 161 Numbers 3 to 5.
How to determine the mode of data presented in a line diagram (polygon). How to determine the mode of data presented in a Bar diagram, How to determine the mode of data presented in a grouped distribution data table.
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3. The monthly turnover obtained by a wifi installation service business owner during 2021 is as follows.
How much turnover is most often obtained?
4. A calculation is made of the number of airplane passengers arriving at an airport (per day) during the 2019 year-end holidays, the results are as in the following polygon.
from the polygon data, most often, how many passengers arrive at the airport (per day) during the 2019 year-end holidays?.
5. In a car racing competition, the performance of the tire replacement team is very important. They are only given a maximum of 2 minutes. The less time it takes to change a tire, the better the team's performance. Here is a record of the time needed for a tire changer team in a car racing competition.
most often, how much time does a tire changer team need in a race?