SAMACHEER KALVI - 8th Maths - CHAPTER 6 - STATISTICS - Important 5 Marks

MATHS-I PAPER      

                           CHAPTER-6

I. ANSWER ALL THE FIVE OF THE FOLLOWING:                 5X 5 = 25

1. The EB bill(in Rs) of each of the 26 houses in a village are given below. Construct the frequency table.

215	200	120	350	800	600	350	400	180	210	170	305	204
220	4254    425	540	315	640	700	790	340	586	660	785	290	300

                       

2. Draw a suitable pie chart for the following data relating to the cost of construction of a house.

Particulars	Bricks	Steel	Cement	Timber	Labour	Others
Expenses	10%	15%	25%	10%	20%	20%

          Also, find how much was spent on labour if Rs 55000 was spent for cement.

3. In a village, there are 570 people who have cell phones. An NGO survey their cell phone usage. Based on this survey a histogram is drawn. 

NGO Survey

Answer the following questions:

(i) How many people use the cell phone for less than 3 hours?

(ii) How many of them use the cell phone for more than 5 hours?

(iii) Are people using cell phone for less than 1 hour?

4. The distribution of heights (in cm ) of loo people is given below. Construct a histogram and the frequency polygon imposed on it.

5. In a study of dental problem, the following data were obtained.

Represent the above data by a frequency polygon.

CLICK HERE TO DOWNLOAD PDF

ROOTTOSUCCESS 

SAMACHEER KALVI - 8th Maths - chapter 6- STATISTICS - Important 5 Marks

 

MATHS-I PAPER      

                                                CHAPTER-6

I. ANSWER ALL THE THREE OF THE FOLLOWING:               3 X 5 = 15

1. Represent the following data in ungrouped frequency table which gives the number of children in 25 families.

         1, 3, 0, 2, 5, 2, 3, 4, 1, 0, 5, 4, 3, 1, 3, 2, 5, 2, 1, 1, 2, 6, 2, 1, 4

2. Income from various sources for Government of India from a rupee is given below. Draw a pie chart.

Statistics

3. Monthly expenditure of Kumaran’s family is given below. Draw a suitable Pie chart.

Statistics

Also

1. Find the amount spent for education if Kumaran spends 6000 for Rent.

2. What is the total salary of Kumaran?

3. How much did he spend more for food than education?

CLICK HERE TO DOWNLOAD PDF

ROOTTOSUCCESS

SAMACHEER KALVI - 8th Maths - chapter 2 - MEAUREMENTS - Important 5 Marks

 

MATHS-I PAPER      

                                                CHAPTER-2

I. ANSWER ALL THE TWO OF THE FOLLOWING:                   2X 5 = 10

1. Find the area of the irregular polygon shaped fields given below.

 

2. A rocket drawing has the measures as given in the figure. Find its area.

ROOTTOSUCCESS 

CLICK HERE TO DOWNLOAD PDF

SAMACHEER KALVI - 8th Maths - chapter 2 - MEASUREMENTS - Important 3 Marks

 

MATHS-I PAPER      

                                                CHAPTER-2

I. ANSWER ALL THE FIVE OF THE FOLLOWING:                5 X 3 = 15

1. Find the length of the arc, area and perimeter using central angle 120°, d = 12.6 cm

2. Find the area of the sectors whose length of arc = 50 cm and radius = 13.5cm.

3. A circle of radius 70 cm is divided into 5 equal sectors. Find the area of each of the sectors.

4. Find the central angle of each of the sectors whose length of arc is 44 m and radius is 35 m.

5. Verify Euler's Formula :

          Face=4, Vertices = 4, Edges =6

CLICK HERE TO DOWNLOAD PDF

ROOTTOSUCCESS