9th mathematics NCERT exercise questions with answers, Mathematics

Statistics – Exercise 14.3 – Class IX

A survey conducted by an organisation for the cause of illness and death among the women between the ages 15 - 44 (in years) worldwide, found the following figures (in %): Sl. No. Causes Female Fertility Rate(%) 1 Reproductive health conditions 31.8 2 Neuropsychiatric conditions 25.4 3 Injuries 12.4 4 Cardiovascular conditions 4.3 5 Respiratory… Continue reading Statistics – Exercise 14.3 – Class IX

9th mathematics NCERT exercise questions with answers, Mathematics

Statistics – Exercise 14.2  – Class IX

The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O. Represent this data in the form of a frequency distribution table. Which… Continue reading Statistics – Exercise 14.2  – Class IX