Tally marks, pictographs, bar graphs, pie charts and mean/median/mode.
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Q1 · Data Handling · EASY
A class of 40 students was asked about their favourite fruit. The results were: Mango - 12 students, Apple - 8 students, Banana - 10 students, Orange - 10 students. If this data is represented using a pictograph where one symbol represents 2 students, how many symbols will be used for Mango?
Q2 · Data Handling · EASY
The marks obtained by 7 students in a test are: 15, 18, 12, 20, 15, 22, 15. What is the mode of this data?
Q3 · Data Handling · MEDIUM
A survey of 60 students shows their favourite sport: Cricket - 20, Football - 15, Badminton - 10, Hockey - 15. If a pie chart is drawn, what will be the central angle for Football?
Q4 · Data Handling · MEDIUM
The daily wages (in rupees) of 9 workers are: 250, 300, 280, 250, 320, 300, 250, 300, 280. Find the median wage.
Q5 · Data Handling · HARD
A teacher recorded the number of books read by 8 students in a month: 3, 5, 7, 4, 6, 5, 8, 6. The mean number of books read is 5.5. If one more student joins and reads 'x' books such that the new mean becomes 6, what is the value of x?