EASY
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In the below figure the value of the median of the data using the graph of less than ogive and more than ogive is 
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Important Questions on Statistics

EASY
No. of Accidents 0 1 2 3 4 5 6 7
Frequency 36 27 33 29 24 27 18 9

In how many cases 4 or more accidents occur ?

MEDIUM

The given table represents the exports (in ₹ crores) of four items A, B, C and D over a period of six years. Study the table and answer the question that follows.

Items 

Year

A B C D
2010 240 128 180 214
2011 250 134 244 282
2012 225 138 230 247
2013 370 169 300 309
2014 425 182 300 275
2015 400 209 306 275

In which year, the exports of item D were 1.4 times the average exports of item B during six years;

EASY
As the number of observations and classes increases, the shape of a frequency polygon
HARD
In a city, the total income of all people with salary below Rs. 10000 per annum is less than the total income of all people with salary above Rs. 10000 per annum. If the salaries of people in the first group increases by 5% and the salaries of people in the second group decreases by 5%, then the average income of all people
MEDIUM

The given table represents the exports ( incrores) of four items A, B, C and D over a period of six years. Study the table and answer the question that follows:

Items  A B C D
Years
2010 240 128 180 214
2011 250 134 244 282
2012 225 138 230 247
2013 370 169 340 224
2014 425 182 300 309
2015 400 209 306 275

The total exports of item A from 2012 to 2014 is what percentage less than the total exports of all the four items in 2015:(Correct to one decimal place)

EASY
If 65 is the range of the ungrouped data 50, 70, 60, B, 20, 40 then the absolute difference of the possible values of B is
MEDIUM
The difference between upper limit and lower limit of a class is called:
MEDIUM
The following pairs relate to frequency distribution of a discrete variable and its frequency polygon. Which one of the following pairs is not correctly matched?
EASY
Ogive is graphical representation of _____ in a frequency distribution.
EASY

What is the median of the given data?

41, 43, 46, 50, 85, 61, 76, 55, 58, 95.

MEDIUM

Find the range and mode of the data 17, 18, 28, 19, 16, 18, 17, 29, 18.

1. 12, 18 2. 13, 18 3. 12, 17 4. 11, 17

EASY
Class 0-10 10-20 20-30 30-40 40-50
Frequency 7 15 13 17 10

The cumulative frequency of the class 20-30 of the above frequency distribution is _____.

 

EASY

The following table gives the frequency of vowels used in the page of a book.

Vowels a o
Frequency  75 125 80 70 75
 
As per the given data, which vowels occur less than 80  times?
EASY
Find the least positive value of k, if the range of 15,14, k, 25,30,35 is 23.