Question

find the mean and median of the following data 13, 16,12,14,19,12,14,13,14​

Answer 1

Answer:

Step-by-step explanation:

WE KNOW THAT ,

MEAN = SUM OF OBSERVATIONS / TOTAL NO OF OBSERVATIONS

THEREFORE , FOR GROUPED DATA

= 13 + 16 + 12 + 14 + 19 + 12 + 14 + 13 + 14 / 9

= 29 + 26 + 31 + 27 + 14 / 9

= 55 + 58 + 14 / 9

= 113 + 14 / 9

= 127 / 9

= 14.12 ( APPROXIMATE VALUE )

HENCE , THE MEAN OF THE DATA IS 14.12  ( APPROXIMATE VALUE ) .

WE KNOW THAT ,

MEDIAN = MID VALUE OF THE DATA .

HENCE , 13 , 16 , 12 , 14 , 19 , 12 , 14 , 13 , 14

HERE , IN THE ARRANGED 9 NUMBERS .

MIDDLE VALUE = 9 / 2 = 4.5 = 5 ( APPROXIMATE VALUE )

HENCE , MEDIAN IS 19 .

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Answer 2

Answer . mean = 14.11.

median = 14

Step-by-step explanation:

Add . 13+16+12+14+19+12+14+13+14

= 127÷9

= 14.11 is mean

median . Arrange in acending order

12,12,13,13,14,14,14,16,19= 14 is median

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