The following is the distribution of weghts (in kg) of 52 persons: Wei

1.	The following is the distribution of weghts (in kg) of 52 persons: Weight in kgPersons40−501050−601560−701770−80680−904 (i) What is the lower limit of class 50-60? (ii) Find the class marks of the classes 40-50,50-60. (iii) What is the class size?
Answer» The following is the distribution of weghts (in kg) of 52 persons: $\begin{matrix} Weight in kg & Persons 40 - 50 & 10 50 - 60 & 15 60 - 70 & 17 70 - 80 & 6 80 - 90 & 4 \end{matrix}$ (i) What is the lower limit of class 50-60? (ii) Find the class marks of the classes 40-50,50-60. (iii) What is the class size?

The following is the distribution of weghts (in kg) of 52 persons: Weight in kgPersons40−501050−601560−701770−80680−904 (i) What is the lower limit of class 50-60? (ii) Find the class marks of the classes 40-50,50-60. (iii) What is the class size?

Answer»

The following is the distribution of weghts (in kg) of 52 persons:

$\begin{matrix} Weight in kg & Persons 40 - 50 & 10 50 - 60 & 15 60 - 70 & 17 70 - 80 & 6 80 - 90 & 4 \end{matrix}$

(i) What is the lower limit of class 50-60?

(ii) Find the class marks of the classes 40-50,50-60.

(iii) What is the class size?