STATISTICS

Front

The difference between the maximum and minimum values of a variable is called ____

Back

Range 

Front

In a histogram the area of each rectangle is proportional to the class size of the corresponding class interval

Back

FALSE

Front

The closed curve representing continuous grouped frequency distribution is called

Back

Frequency Polygon

Front

Find the median of the given data:
0,3,3,4,5,7,8,11,12

Back

5

Front

In the class interval 10-20, 20 - 30, the number 20 is included in _____

Back

20 - 30

Front

Class mark of the class 16 - 24

Back

20

Front

Class corresponding to the class mark 20 in the distribution: 15, 20, 25, ...
Options: 12.5 - 17.5, 17.5 - 22.5, 18.5 - 21.5, 19.5 - 20.5

Back

18.5 - 21.5

Front

Mean of x -1 , x + 1, x + 3 and x + 5

Back

x + 2

Front

Back

5

Front

If each observation of the data is increased by 5, then their mean

Back

is increased by 5