Observe the following table and answer what is the total number of students?
Blood Group Number of students
$A$ $10$
$B$ $8$
$O$ $12$
$AB$ $15$

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Solution

From the given table
number of students having $A$ blood group are $10$
number of students having $B$ blood group are $8$
number of students having $O$ blood group are $12$
number of students having $AB$ blood group are $15$
So, the total number of students $= 10 + 8 + 12 + 15$
$= 45 students .$

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Similar questions

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

The above 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 AB.

Question 65

Using the frequency table, answer the following:

9 students got full marks ?
$\begin{matrix} Marks(Obtained out of 10) & 4 & 5 & 7 & 8 & 9 & 10 Frequency & 5 & 10 & 8 & 6 & 12 & 9 \end{matrix}$

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

Observe the following table and answer which blood group is rarest?

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

Q. Study the pie chart and information given and answer the following question.
There are

1150

students of a school opted sports as a hobby.
The following table shows, the distribution of Boys and Girls students of seven different schools.

School	Boys (Total $27, 300$ )	Girls(Total $24, 700$ )
A.	$17 %$	$8 %$
B.	$12 %$	$15 %$
C.	$12 %$	$12 %$
D.	$13 %$	$13 %$
E.	$19 %$	$14 %$
F.	$14 %$	$21 %$
G.	$15 %$	$17 %$

What is the ratio between the number of Girls and Boys students respectively from school F?

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Observe the following table and answer what is the total number of students?Blood GroupNumber of studentsA10B8O12AB15

From the given tablenumber of students having A blood group are 10number of students having B blood group are 8number of students having O blood group are 12number of students having AB blood group are 15So, the total number of students =10+8+12+15 =45students.

Observe the following table and answer what is the total number of students?
Blood Group Number of students
$A$ $10$
$B$ $8$
$O$ $12$
$AB$ $15$

From the given table
number of students having $A$ blood group are $10$
number of students having $B$ blood group are $8$
number of students having $O$ blood group are $12$
number of students having $AB$ blood group are $15$
So, the total number of students $= 10 + 8 + 12 + 15$
$= 45 students .$