Question

. In a school, 24 students absent today. If 726 students are present, then find the total number of students inthe school.`​

Answer 1

Answer:

the number of students in the school is 750

726+24= 750

Answer 2

Answer:

Step-by-step explanation:

Answer

No. of students

absent (x)  No. of days (f)  fx  

0  1  0  

1  4  4  

2  10  20  

3  50  150  

4  34  136  

5  15  75

6  4  24  

7  2  14  

Σf=1+4+10+50+34+15+4+2

  =120  Σfx=0+4+20+150+136+75+24+14

     =423  

Mean number of students absent per day (  

x

ˉ

)=  

Σf

Σfx

​

=  

120

423

​

=3.525

Hence, the mean number of students absent per day is 3.525.