Trilinear chart is used to portray simultaneously____________.
a. Two variables.
b. Three variables.
c. Four variables.
d. Any number of variables

The data given as 5, 7, 12, 17, 79, 84, 91 will be called as____________.
a. A continuous series.
b. A discrete series.
c. An individual series.
d. Time series.

Frequency of a variable is always____________.
a. In percentage.
b. A fraction.
c. An integer.
d. None of the above.

Frequency of a variable is always____________.
a. In percentage.
b. A fraction.
c. An integer.
d. None of the above.

A grouped frequency distribution with uncertain first or last classes is known
as____________.
a. Exclusive class distribution.
b. Inclusive class distribution.
c. Open end distribution.
d. Discrete frequency distribution.

Class interval is measured as____________.
a. The sum of the upper and lower limit.
b. Half the sum of upper and lower limit.
c. Half the difference between upper and lower limit.
d. The difference between upper and lower limit

In a grouped data, the number of classes preferred are_______________.
a. Minimum possible.
b. Adequate.
c. Maximum possible.
d. Any arbitrarily chosen number

A series showing the sets of all values in classes with their corresponding frequencies is
known as___________.
a. Grouped frequency distribution.
b. Simple frequency distribution.
c. Cumulative frequency distribution.
d. None of the above

A series showing the sets of all distinct values individually with their frequencies is known
as___________.
a. Grouped frequency distribution.
b. Simple frequency distribution.
c. Cumulative frequency distribution.
d. None of the above.

Whether classification is done first or tabulation?
a. Classification follows tabulation.
b. Classification precedes tabulation.
c. Both are done simultaneously.
d. No criterion

Sources of secondary data are___________.
a. Published sources.
b. Unpublished sources.
c. Neither published nor unpublished sources.
d. Both published and unpublished sources.

Statistics can be considered as ___________.
a. An art.
b. A science.
c. Neither an art not science.
d. Both art and science.

In a mixture of three varities of oils , the ratio of their weight is 4 : 5 : 8. If 5 kg of oils of the first variety, 10 kg of the second variety and some quantity of oils of the third variety are added to the mixture, the ratio of the weights of three varieties of oils becomes as 5 : 7 : 9 in the final mixture, find the quantity of third variety of oil was ?

A contractor undertake to finish a certain work in 124 days and employed 120 men. After 64 days, he found that he had already done 2/3 of the work. How many men can be discharged so that the work may finish in time ? 

A) 64

B) 62

C) 58

D) 56

12 buckets of water fill a tank when the capacity of each tank is 13.5 liters. How many buckets will be needed to fill the same tank,if the capacity of each bucket is 9 liters?

Mohan purchased 120 reams of paper at Rs 80 per ream. He spent Rs 280 on transportation, paid octroi at the rate of 40 paise per ream and paid Rs 72 to the coolie. If he wants to have a gain of 8 %, what must be the selling price per ream?

A can do a piece of work in 10 days, B in 15 days. They work together for 5 days, the rest of the work is finished by C in two more days. If they get Rs. 3000 as wages for the whole work, what are the daily wages of A, B and C respectively (in Rs):

Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank ?

The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is...