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CHAPTER:13 STATISTICAL DESCRIPTIONS OF DATA

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Marks: 30

Q.   1

What percentage of candidates passed the exam from Institute T out of the total number of candidates enrolled from the same institute?

Q.   2

The number of candidates passed from institutes S and P together exceeds the number of candidates enrolled from institutes T and R together by:

Q.   3

What is the percentage of candidates passed to the candidates enrolled for institutes Q and R together?

Q.   4

What is the ratio of candidates passed to the candidates enrolled from institute P?

Q.   5

A sum of Rs. 4.75 lakhs were invested in Company Q in 1999 for one year. How much more interest would have been earned if the sum was invested in company P?

Q.   6

The total sales of all seven years in the maximum for the maximum for which battery?

Q.   7

What is the difference in the number of 35AH batteries sold in 1993 and 1997?

Q.   8

The percentage of 4AH batteries sold to the total number of batteries sold was maximum in the years?

Q.   9

What was the difference in the number of Q type cars product in 2000 and that produce in 2001?

Q.   10

Total number of cars of models P, Q and T manufactured in 2000 is?

Q.   11

If the percentage production of P type cars in 2001 was the same as that in 2000, then the number of P type cars produced in 2001 would have been?

Q.   12

If 85% of the cars produced in each year were sold by the company, how many S type cars remain unsold?

Q.   13

For which model the percentage rise/fall in production from 2000 to 2001 was minimum?

Q.   14

What was the number of males in U.P. in the year 1998?

Q.   15

If in the year 1998, there was an increase of 10% in the population of U.P. and 12% in the population of M.P. compared to the previous year, then what was the ratio of populations of U.P. and M.P. in 1997?

Q.   16

Enamels in 2000? (Rounded off to nearest integer)

Q.   17

During the period 1995-2000, the minimum rate of increase in sales is in the case of?

Q.   18

What is the approximate ratio of the sales of nail enamels in 2000 to the sales of Talcum powder in 1995?

Q.   19

The sales have increased by nearly 55% from 1995 to 2000 in the case of?

Q.   20

The sales of conditioners is 1995 was by what percent less than the sales of shampoos in 1995? (Rounded off to nearest integer)

Q.   21

The numbers of times a particular observation occurs in a given data is called its_____ _.

 

Fill in the blanks to make statements true.

Q.   22

The mean of 10 numbers is 7. If each number is multiplied by 12, find the mean of new set of numbers.

Q.   23

Frequency density is used in the construction of

Q.   24

None when the classes are of unequal width

Q.   25

Data are said to be____ if the investigator himself is responsible for the collection

 

of the data.

Q.   26

A suitable graph for representing the portioning of total info sub in statistics is statics is:

Q.   27

The number of times a particular item occurs in a class its

Q.   28

____________ Series is continuous.

Q.   29

Which of the following graph is suitable for cumulative frequency distribution

Q.   30

Histogram is used for finding

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