Scroll:Data Analysis >> Average of a Set of Data >> ps (1781)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

What is the average age of this group of friends

Name Tulasi Keerthi Chithra Amutha
Age(In years)  12  12  16  12


Answer:_______________




2)  

What is the average growth in height for the bean plant in centimeters

Days of the week Monday Tuesday Wednesday Thursday Friday
Growth in
height(cm)		  2.2  1.4 2.3  3.0 1.4

cm


Answer:_______________




3)  

Tamilselvi's English Test scores for year 2007 are shown below. 

What is the average score for her English

English CA1 SA1 CA2 SA2
Score  48  32  84  80


Answer:_______________




4)  

What is the average age of this group of friends

Name Ponnalagu Thamarai Poovazhagi Nandini
Age(In years)  40  24  28  36


Answer:_______________




5)  

What is the average age of this group of friends

Name Thamarai Ramani Poongodi Indra
Age(In years)  36  40  40  36


Answer:_______________




6)  

The table shows the amount of money each child saves each week.
What is the average amount of money each child save per week

Name Poongodi Nandini Savithri Ponnalagu
Money saved  $6.20  $8.40  $10.20  $4.20

$ ___


Answer:_______________




7)  

What is the average age of this group of friends

Name Swathi Chithra Poovazhagi Tamilselvi
Age(In years)  16  16  12  16


Answer:_______________




8)  

What is the average growth in height for the bean plant in centimeters

Days of the week Monday Tuesday Wednesday Thursday Friday
Growth in
height(cm)		  1.1  3.0 3.3  2.1 1.5

cm


Answer:_______________




9)  

Chithra's English Test scores for year 2007 are shown below. 

What is the average score for her English

English CA1 SA1 CA2 SA2
Score  36  84  88  96


Answer:_______________




10)  

What is the average age of this group of friends

Name Ponnalagu Mithra Pavi Panimalar
Age(In years)  36  28  28  24


Answer:_______________




 

1)  

What is the average age of this group of friends

Name Tulasi Keerthi Chithra Amutha
Age(In years)  12  12  16  12

Answer: 13


SOLUTION 1 :

Step 1: 12 + 12 + 16 + 12 = 52

Step 2: 52 ÷ 4 = 13



2)  

What is the average growth in height for the bean plant in centimeters

Days of the week Monday Tuesday Wednesday Thursday Friday
Growth in
height(cm)		  2.2  1.4 2.3  3.0 1.4

Answer: 2.06 cm


SOLUTION 1 :

Step 1: 2.2 + 1.4 + 2.3 + 3.0 + 1.4 = 10.3 cm

Step 2: 10.3 ÷ 5 = 2.06 cm



3)  

Tamilselvi's English Test scores for year 2007 are shown below. 

What is the average score for her English

English CA1 SA1 CA2 SA2
Score  48  32  84  80

Answer: 61


SOLUTION 1 :

Step 1: 48 + 32 + 84 + 80 = 244

Step 2: 244 ÷ 4 = 61



4)  

What is the average age of this group of friends

Name Ponnalagu Thamarai Poovazhagi Nandini
Age(In years)  40  24  28  36

Answer: 32


SOLUTION 1 :

Step 1: 40 + 24 + 28 + 36 = 128

Step 2: 128 ÷ 4 = 32



5)  

What is the average age of this group of friends

Name Thamarai Ramani Poongodi Indra
Age(In years)  36  40  40  36

Answer: 38


SOLUTION 1 :

Step 1: 36 + 40 + 40 + 36 = 152

Step 2: 152 ÷ 4 = 38



6)  

The table shows the amount of money each child saves each week.
What is the average amount of money each child save per week

Name Poongodi Nandini Savithri Ponnalagu
Money saved  $6.20  $8.40  $10.20  $4.20

Answer: $7.25


SOLUTION 1 :

Step 1: $6.20 + $8.40 + $10.20 + $4.20 = $29.00

Step 2: $29.00 ÷ 4 = $7.25



7)  

What is the average age of this group of friends

Name Swathi Chithra Poovazhagi Tamilselvi
Age(In years)  16  16  12  16

Answer: 15


SOLUTION 1 :

Step 1: 16 + 16 + 12 + 16 = 60

Step 2: 60 ÷ 4 = 15



8)  

What is the average growth in height for the bean plant in centimeters

Days of the week Monday Tuesday Wednesday Thursday Friday
Growth in
height(cm)		  1.1  3.0 3.3  2.1 1.5

Answer: 2.2 cm


SOLUTION 1 :

Step 1: 1.1 + 3.0 + 3.3 + 2.1 + 1.5 = 11 cm

Step 2: 11 ÷ 5 = 2.2 cm



9)  

Chithra's English Test scores for year 2007 are shown below. 

What is the average score for her English

English CA1 SA1 CA2 SA2
Score  36  84  88  96

Answer: 76


SOLUTION 1 :

Step 1: 36 + 84 + 88 + 96 = 304

Step 2: 304 ÷ 4 = 76



10)  

What is the average age of this group of friends

Name Ponnalagu Mithra Pavi Panimalar
Age(In years)  36  28  28  24

Answer: 29


SOLUTION 1 :

Step 1: 36 + 28 + 28 + 24 = 116

Step 2: 116 ÷ 4 = 29