Page 154 - Data Science class 10
P. 154
Question 1: Tick yes for any of the given music types you like. Check no for those you don’t like.
Music Yes No
Classical
Rap
Bollywood
Pop
Rock
Question 2: Choose your most favourite type of music.
Classical
Rap
Bollywood
Pop
Rock
Question 3: What is your second favourite type of music?
Classical
Rap
Bollywood
Pop
Rock
Question 4: Would you prefer a live band or a DJ at the annual dance event at school?
DJ
Live Band
2.4.2. Analyse the Data
Many of the graphical, tabular, and numerical summaries that we have made while collecting data can be enhanced
and used for more sophisticated analyses at later stages. Displays at later stages mostly represent multiple variables
and/or use multiple displays to answer the Music choices of students
statistical investigative questions. To analyse the 60
survey data collected using a class as a sample
for the school, we can graph the number of
students who like each type of music. 50
The bar graph in the following figure uses the 40
student answers to survey question 1 noted
above, where each music type is a variable. 30
The bar graph shows the frequencies of students Number of Students
who like and dislike each type of music. From 20
this graph, it is evident that Rock has the highest
number of students in the class responding to
yes, that they like it. The second highest is Rap 10
followed by Classical. Thus, the graph suggests
that Rock, Rap and Classical are the most liked 0 Classical Rap Bollywood Pop Rock
music among students. Responses to survey
question 2 can be analysed to see what students Grade 8 Grade 9 Grade 10
favourite type of music is. Type of Music
152 Touchpad Data Science-X

