do a survey in your class and collect the data from all those students who spend more than 4 hours watching TV on a particular day represent the collect data into histogram
Answers
Answer:
Data Handling (Mathematics) Class 8 - NCERT Questions
Q 1.
For which of these would you use a histogram to show the data?
(A) The number of letters for different area in postman’s bag.
(B) The height of competitors in an athletics meet.
(C) The number of cassettes produced by 5 companies.
(D) The number of passengers boarding trains from 7:00 a.m. to 7:00 p.m. at a station.
Give reasons for each.
SOLUTION:
(a) We use pictograph for the given statement. Since, letters can be represented through appropriate picture or symbols, we will not use histogram.
(b) We use histogram for the given statement since the height of competitors in an athletics meet can be divided into class intervals.
(c) We will not use histogram. We use pictograph for the given statement since the cassettes can be represented through appropriate picture or symbols.
(d) We use histogram for the given statement since the time of boarding trains from 7:00 a.m. to 7:00 p.m. can be divided into class intervals.
Q 2.
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 :
W W W G B W W M G G M M W W W W G B M W B G G M W W M M W W W M W B W G M W W W W G W M M W W M W G W M G W M M B G G W
Make a frequency distribution table using tally marks. Draw a bar graph to illustrate it.
SOLUTION:
Firstly by using a given information, we make a frequency distribution, table by using tally marks.
Answer: In my class there are 22 students so in them 10 members watched more then 4 hours so:-
Step-by-step explanation: so you need to write all the 22 members names and draw the histogram how many hours they were watching the TV. [Histogram:- A histogram is a graphical representation of a grouped frequency distribution with continuous classes.]