दिए गए आंकड़ों को माध्यिका ज्ञात कीजिये : 25, 21, 17, 16, 19, 23, 18, 25, 15, 12, 27

D_(3) for data: 16, 21, 27, 13, 19, 26, 25, 12, 17, 28 is

Find the median of : 25, 18, 13, 20, 16, 9, 22, 8, 6, 15, 21, 11, 17

Find the mode of the data : 14, 6, 9, 15, 14, 9, 21, 21, 25, 21, 27, 29, 21, 8, 6, 15, 25, 14, 21, 9, 21, 25, 27, 29, 6, 14, 21, 21, 27, 25, 27, 9, 15, 14, 9.

Construct a frequency table for the following ages (in years) of 30 students using equal class intervals, one of them being 9-12 , where 12 is not included. 18, 12, 7, 6, 11, 15, 21, 9, 8, 13, 15, 17, 22, 19, 14, 21, 23, 8, 12, 17, 15, 6, 18, 23, 22, 16, 9, 21, 11, 16 .

Construct a frequency table for the following ages (in years) of 30 students using equal class intervals, one of them being 9-12, where 12 is not included. 18, 12, 7, 6, 11, 15, 21, 9, 8, 13, 15, 17, 22, 19, 14, 21, 23, 8, 12, 17, 15, 6, 18, 23, 22, 16, 9, 21, 11, 16.

|{:(13,16,19),(14,17,20),(15,18,21):}|

Q_(2) for the data: 13, 16, 28, 17, 12, 25, 26, 19, 27, 21 is :

Find the mode of the observations 25, 20, 16, 12, 20, 16, 19, 23, 31, 20, 11, 18, 16.

The mean of the data 15, 20, 20, 16, 22, 17, 23, 18, 24, 25 is ________.