Question 1: Arrange the following data in ascending order:
(i)
(ii)
Answer:
(i)
(ii)
Question 2: Arrange the following data in descending order:
(i)
(ii)
Answer:
(i)
(ii)
Question 3: Construct a frequency table for each of the following data:
(i)
(ii)
(iii)
(iv)
Answer:
(i) First step is to arrange the data in ascending order.
Tally | ||
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(ii) First step is to arrange the data in ascending order.
Tally | ||
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(iii) First step is to arrange the data in ascending order.
Class Interval | Tally | |
(iv) First step is to arrange the data in ascending order.
Tally | ||
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Question 4: Fill in the blanks:
(i) Lower limit of the class interval is
.
(ii) Upper limit of the class interval is
.
(iii) Class size of the interval is
.
(iv) If the upper and the lower limits of a class interval be and
respectively, then the class interval is
(v) If the lower and the upper limit of the class interval be and
respectively, then the class interval is
.
Question 5: The marks out of , obtained by
students of a class in an examination are given below:
Arrange them in ascending order and present it in a grouped data, by taking class interval as
Answer:
In ascending order:
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Question 6: The fine imposed in Rs. on students for being absent is given below:
Present the data in the form of frequency distribution table by taking class interval of .
Answer:
Fine (Rs.) | Tally | |
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Question 7: The weight in kg of 30 students are given below:
For the group frequency table by taking class intervals .
Answer:
Weight (kgs) | Tally | |
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Question 8: The daily income in Rs of workers is given below:
Construct a frequency table using groups .
Answer:
Class Interval | Tally | |
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Question 9: The heights of 45 students measured to the nearest centimeter are given below:
Prepare a frequency table taking class intervals
Answer:
Class Interval | Tally | |
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Question 10: Complete the table
Class Interval | Class Limit | Class Size | Class Mark | Class Boundaries | ||
Lower | Upper | Lower | Upper | |||
25-30 | ||||||
30-35 | ||||||
35-40 | ||||||
40-45 |
Answer:
Class Interval | Class Limit | Class Size | Class Mark | Class Boundaries | ||
Lower | Upper | Lower | Upper | |||
25-30 | ||||||
30-35 | ||||||
35-40 | ||||||
40-45 |
Question 11: Complete the table
Class Interval | Class Limit | Class Size | Class Mark | Class Boundaries | ||
Lower | Upper | Lower | Upper | |||
26-30 | ||||||
31-35 | ||||||
36-40 | ||||||
41-45 |
Answer:
Class Interval | Class Limit | Class Size | Class Mark | Class Boundaries | ||
Lower | Upper | Lower | Upper | |||
26-30 | ||||||
31-35 | ||||||
36-40 | ||||||
41-45 |