Class 7 Mathematics Chapter 3 Data Handling Quiz 10 (25 MCQs)

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1. Numbers 1 to 10 are written on ten separates slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking in to it. What is the probability of getting a number less than 6?
2. Among the numerical data below, which is a discrete data?
3. In a class of 50 students, 40 % are girls. Find the number of girls in the class?
4. In a frequency distribution with classes 0-10, 10-20 etc. the size of the class intervals is 10. The lower limit of fourth class is
5. A ..... is used to display 2 sets of data on the same graph
6. Find the mean of:70, 82, 70, 2
7. Let x, y, z be the three observations. The mean of three numbers is
8. Find the Mean of:8, 14, 32, 6, 15
9. If you have a spinning wheel with 3 green sectors, 1 blue sector and 1 red sector, what is the probability of getting a non blue sector?
10. ..... is an arrangement of different objects numbres letters pics etc which follow a certain rule
11. In an pattern the objects or numbers do not extend in a sequence
12. What will be the result of the expression 'None' and 'a'
13. The marks of some students are as given below:30, 31, 32, 32, 33, 32, 34, 35, 30, 31, 33, 32Find the mode of their marks.
14. What is the probability that a student chosen at random out of 3 girls and 4 boys is a boy?
15. If 20-30 is the class interval of grouped data, then the lower class limit is .....
16. When a die is thrown, then the probability of getting a number not greater than 5
17. Find the median:16, 7, 7, 15, 5
18. Rearrange the following into ascending order:8 6 2 3 4 8 7
19. Which of the following is an experiment
20. Reid picks a card at random. Without putting the first card back, he picks a second card at random.
21. A dice is rolled. Find out the probability of getting 7.
22. Classify the following data"Daily temperature in Kuala Lumpur"
23. Find the mode:5, 0, 9, 9, 3, 0, 5, 5, 4
24. A given data set can have only one mode
25. The marks of 11 students of a class are as given below:78, 11, 99, 63, 94, 6, 78, 36, 30, 55, 22The range of marks is