NCERT Solutions For Class 9 Math Chapter – 14 Statistics Exercise – 14.1
NCERT Solutions For Class 9 Math Chapter – 14 Statistics helps students in learning basic concepts of probability which is include in the second term’s CBSE syllabus 2021-2022 NCERT Solutions For Class 9 Maths provide answers to all the questions in exercise present at the end of the chapter These solutions are prepared by our mathematics experts who are highy experienced in the field of education.
Experts at Sunstarup have created the NCERT Solutions after extensive search on each topic Students can refer to this study study material to boost their confidence and attempt the second term exam smartly. The concepts are explained with steps, shortcuts to remember formula , tips and tricks to solve the numerical problems wisely and quickly.
Five examples from day-to-day life:
- Number of students in our class.
- Number of fans in our school.
- Electricity bills of our house for last two years.
- Election results obtained from television or newspapers.
- Literacy rate figures obtained from Educational Survey
2. Classify the data in Q.1 above as primary or secondary data.
Primary data: when the information was collected by the investigator herself or himself with a definite objective in her or his mind, the data obtained is called primary data.
Primary data; (i), (ii) and (iii)
Secondary data; when the information was gathered from a source which already had the information stored, the data obtained is called secondary data
Secondary data; (iv) and (v)