Statistical Description of data

The quickest method to collect primary data is:

• Personal interview

• Indirect Interview

• Mailed Questionnaire

• Telephonic Interview

Which of the following statements is true?

• Statistics is derived from the French word ‘statistik’

• Statistics is derived from the Italian word 'statista'

• Statistics is derived from the Latin word ‘statistique’

• None of these

In tabulation, source of data, if any, is shown in the:

• Stub

• Body

• Caption

• Footnote

Frequency density corresponding to a class interval is the ratio of :

• class frequency to the total frequency

• class frequency to the class length

• class frequency to the cumulative frequency.

• class length to the class frequency

From the following data: 73,72, 65, 41, 54, 80,50, 46,49,53.

Find the number class intervals if class length is given as 5.

• 6

• 5

• 7

• 8

The statistical measure computed from the sample observations alone have been termed as

• Estimate

• Parameter

• Statistic

• Attribute

When the two curves of ogive intersect, the point of intersection provides

• First Quartile

• Second Quartile

• Third Quartile

• Mode

Cost of Sugar in a month under the heads: raw materials, labour, direct production and others were 12, 20, 35 & 23 units respectively. The difference between their central angles for the largest & smallest components of the cost of Sugar is

• 92 degree

• 72 degree

• 48 degree

• 56 degree

The frequency of class 20-30 in the following data is :
   

• 15

• 5

• 28

• 16

From the following data related to 90 people, What is the percentage of persons earning more than Rs.2,500?

• 45

• 50

• 55

• 60