Data Handling

Number of times an observation has occurred in a given data is _____ of an observation .

• Data

• Frequency

• Mean

• Array

_______ refers to the information in the form of numerical figures.

• Frequency

• Data

• Raw data

• Observation

Each numerical figure in a data is called _____ .

• Tally

• Array

• Source

• Observation

It is the branch of mathematical science that deals with the collection, presentation, analysis and interpretation of numerical data.

• Data

• Observation

• Statistics

• Primary source

The final marks in mathematics of 30 students are as follows:53, 61, 48, 60, 78, 68, 55, 100, 67, 90, 75, 88, 77, 37, 84, 58, 60,  48, 62,  56, 44, 58, 52, 64, 98, 59, 70,  39, 50,  60

What is the highest score?

• 98

• 90

• 100

• 37

The weights of new born babies (in kg) in a hospital on a particular day are as follow:

2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4

How many babies weigh more than 2.8 kg?

• 5

• 4

• 3

• 2

Following data gives the number of children in 40 families: 1, 2, 6, 5, 1, 5, 1, 3, 2, 6, 2, 3, 4, 2, 0, 0, 4, 4, 3, 2, 2, 0, 0, 1, 2, 2, 4, 3, 2, 1, 0, 5, 1, 2, 4, 3, 4, 1, 6, 2

Represent it in the form of a frequency distribution and find out frequency for 2 children.

• 9

• 10

• 11

• 12

Following is the choice of sweets of 30 students of class VI:

Ladoo, Barfi, Ladoo, Jalebi, Ladoo, Rasgulla, Jalebi, Ladoo, Barfi, Rasgulla, Ladoo, Jalebi, Jalebi, Rasgulla, Ladoo, Rasgulla, Jalebi, Ladoo, Rasgulla, Ladoo, Rasgulla, Jalebi, Ladoo, Rasgulla, Ladoo, Ladoo, Barfi, Rasgulla, Rasgulla, Ladoo.

Which sweet is preferred by most of the students.

• Ladoo

• Barfi

• Jalebi

• Rasgulla

Following figures relate the weekly wages (in Rs.) of 15 workers in a factory:

300, 250, 200, 250, 200, 150, 350, 200, 250, 200, 150, 300, 150, 200, 250

Prepare a frequency table and find out how many Workers are getting Rs 350?

• 1

• 2

• 3

• 4

Construct a frequency distribution table for the following marks obtained by 25 students in a history test in class VI of a school:

9, 17, 12, 20, 9, 18, 25, 17, 19, 9, 12, 9, 12, 18, 17, 19, 20, 25, 9, 12, 17, 19, 19, 20, 9

Which mark is occurring more frequently?

• 25

• 17

• 9

• 12