Question

The weight of five students are shown.
below
Student A B C D E
weight ( in kgs) 40 30 35 30 40​

Answer 1

Answer:

60 kg yòooppoppjdksjdjwowjsjdoaodjdisiao

Answer 2

Step-by-step explanation:

Answer

Weight (in kg) Number of students

(Frequency)  Cumulative

Frequency  

40 - 45 2  2  

45 - 50  3  5  

50 - 55  8  13  

55 - 60  6  19  

60 - 65   6  25  

65 - 70  3  28  

70 - 75  2  30 =n  

We have, n=30  

2

n

​  

=15

The cumulative frequency just greater than  

2

n

​  

 is 19 and the corresponding class is 55–60.

Thus, 55–60 is the median class such that

2

n

​  

=15,l=55,f=6,cf=13 , and h=5

Substituting these values in the formula

Median, M=l+  

⎝

⎛

​  

 

f

2

n

​  

−cf

​  

 

⎠

⎞

​  

×h

M=55+(  

6

15−13

​  

)×5

M=55+  

6

2

​  

×5=55+1.67=56.67

Hence, the median weight =56.67 kg .