Q. 24.3( 14 Votes )

The blood groups of 36 students of IX class are recorded as follows.



Represent the data in the form of a frequency distribution table. Which is the most common and which is the rarest blood group among these students?

Answer :

Given the blood groups of 36 students can be represented in the form of frequency distribution table.

Just count the occurrence of blood groups in the data and formulate a table.


Count of blood group:


A = 10


B = 9


O = 15


AB = 2



Representing the same on a graph to show the relationship between blood group and number of students (frequency),



From the frequency table as well as from the graph, notice that:


Most common blood group = O [As O has the greatest no. of occurrence, i.e., frequency = 15]


Rarest blood group = AB [As AB has the least no. of occurrence, i.e., frequency = 2]


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Median and ModeQuiz | Median and ModeQuiz | Median and Mode29 mins
Bonus Questions on Measures of Central TendencyBonus Questions on Measures of Central TendencyBonus Questions on Measures of Central Tendency43 mins
Quiz | Basics of  MeanQuiz | Basics of  MeanQuiz | Basics of Mean37 mins
NCERT | Imp Qs Discussion on StatisticsNCERT | Imp Qs Discussion on StatisticsNCERT | Imp Qs Discussion on Statistics43 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :