Observe the following table and answer which blood group is rarest?
Blood Group Number of students
$A$ $10$
$B$ $8$
$O$ $12$
$AB$ $15$

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Solution

From the given table, we observe that the frequency of the blood group $B$ is the lowest among all given blood groups.
So we can conclude that the blood group $B$ is rarest among all given blood groups.

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Similar questions

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. Find out which is the most common and which is the rarest blood group among these students

Question 1
The blood groups of 30 students of Class VIII are recoded 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 frequency distribution table. Which is the most common, and which is the rarest, blood group among these students?

Observe the following table and answer what is the total number of students?

Blood Group	Number of students
$A$	$10$
$B$	$8$
$O$	$12$
$AB$	$15$

Q. The below frequency distribution table represents the blood groups of

30

students of a class. Use this table to determine the probability that a student of this class, selected at random, has blood group

A B

Blood group	Number of students
A	9
B	6
AB	3
O	12
Total	30

The following table shows the blood groups of $40$ students of a class:

BLOOD GROUP	$A$	$A B$	$B$	$O$
NO. OF STUDENTS	$9$	$5$	$11$	$15$

One student in the class is chosen at random. What is the probability that the chosen student has blood group: (i) $O$ ? (ii) $A B$ ?

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Observe the following table and answer which blood group is rarest?Blood GroupNumber of studentsA10B8O12AB15

From the given table, we observe that the frequency of the blood group B is the lowest among all given blood groups.So we can conclude that the blood group B is rarest among all given blood groups.

Observe the following table and answer which blood group is rarest?
Blood Group Number of students
$A$ $10$
$B$ $8$
$O$ $12$
$AB$ $15$

From the given table, we observe that the frequency of the blood group $B$ is the lowest among all given blood groups.
So we can conclude that the blood group $B$ is rarest among all given blood groups.