Statistics

If n is the total number of observations, the class whose cumulative frequency is greater than $\frac{n}{2}$  This class is called the median 

• TRUE

• FALSE

For a certain distribution,mode and median were found to be 100 and 1250 respectively. Find mean for this distribution using an empirical relation

• 1375

• 1265

• 1145

• 1550

The wickets taken by a bowler in 10 cricket matches are as follows: 2,6,4,5,0,2,1,3,2,3 Find the mode of the data

• 2

• 3

• 4

• 5

Can the mean, median and mode of data coincide?

• Yes

• No

The mean, median and mode of grouped data are always different

• TRUE

• FALSE

The median of frequency distribution is found graphically with the help of

• a histogram

• a frequency curve

• a frequency polygon

• ogives

The class mark of the class 5.5-20.5 is

• 15.5

• 20.5

• 18

• 5

Find the class mark of class 35-55

• 45

• 46

• 47

• 48

The graphical representation of a cumulative frequency distribution is called

• Bar graph

• Histogram

• Frequency polygon

• Ogive

An ogive is used to determine

• Standard deviation

• Median

• Mode

• Mean