The number of hours for which students of a particular class watched television during holidays is shown through the given graph.
Answer the following:
(i) For how many hours did the maximum number of students watch TV?
(ii) How many students watched TV for less than 4 hours?
(iii) How many students spent more than 5 hours in watching TV?
Solution:
A histogram can be defined as a set of rectangles with bases along with the intervals between class boundaries. Each rectangle bar depicts some sort of data and all the rectangles are adjacent. It is the graphical representation of data where data is grouped into continuous number ranges and each range corresponds to a vertical bar.
- The maximum number of students watched T.V. for 4 – 5 hours.
- 34 students watched T.V. for less than 4 hours.
- 14 students spent more than 5 hours in watching T.V.
☛ Check: NCERT Solutions for Class 8 Maths Chapter 5
Video Solution:
The number of hours for which students of a particular class watched television during holidays is shown through the given graph. Answer the following: (i) For how many hours did the maximum number of students watch T.V.? (ii) How many students watched T.V. for less than 4 hours? (iii) How many students spent more than 5 hours in watching T.V.?
NCERT Solutions for Class 8 Maths Chapter 5 Exercise 5.1 Question 5
Summary:
The number of hours for which students of a particular class watched television during holidays is shown through the given graph. (i) The maximum number of students watched T.V. for 4 – 5 hours. (ii) 34 students watched T.V. for less than 4 hours. (iii) 14 students spent more than 5 hours in watching T.V.
☛ Related Questions:
- For which of these would you use a histogram to show the data? (a) The number of letters for different areas in a postman’s bag. (b) The height of competitors in an athletics meet. (c) The number of cassettes produced by 5 companies.
- The shoppers who come to a departmental store are marked as: man (M), woman (W), boy (B) or girl (G). The following list gives the shoppers who came during the first hour in the morning:
- The weekly wages (in Rs) of 30 workers in a factory are: 830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 835, 836, 878, 840, 868, 890, 806, 840. Using tally marks, make a frequency table with intervals as 800 – 810, 810 – 820 and so on.
- Draw a histogram for the frequency table made for the data in Question 3, and answer the following questions. (i) Which group has the maximum number of workers?