Caculate mode of the following series , using grouping method :
`{:("Size",40,44,48,52,56,60,64,68,72,76),("Frequency",10,12,14,20,15,20,18,10,8,4):}`

Median of a distribution is the value of the variable which divides it into equal parts . In case of individual observations x_1,x_2 .. x_n , if the number of observations is odd, then median is the value of ((n+1)/2) th observation when the observations have been arranged in ascending or descending order of magnitude. In case of even number of observations median is the A.M. of the values of (n/2) th and (n/2+1) th observations, arranged in ascending or descending order of magnitude . The mode of distribution is that value of the variable for which the frequency is maximum . The mode of following series is {:("value (x)",40,44,48,52,56,62,64,72,76),("frequency (f)",10,12,14,20,15,19,18,8,4):}

Median of a distribution is the value of the variable which divides it into equal parts . In case of individual observations x_1,x_2 .. x_n , if the number of observations is odd, then median is the value of ((n+1)/2) th observation when the observations have been arranged in ascending or descending order of magnitude. In case of even number of observations median is the A.M. of the values of (n/2) th and (n/2+1) th observations, arranged in ascending or descending order of magnitude . The mode of distribution is that value of the variable for which the frequency is maximum . The mode of following series is {:("value (x)",40,44,48,52,56,62,64,72,76),("frequency (f)",10,12,14,20,15,19,18,8,4):}

From the following data , determine the mode by grouping method : {:("Size",7,8,9,10,11,12,13,14,15,16,17),("Frequency",2,3,6,12,20,24,25,7,5,3,1):}

Given the following data , calculate mode using the grouping technique . {:("Size",2,3,4,5,6,7,8,9,10,11,12,13),("Frequency",3,8,10,12,16,14,10,8,17,5,4,1):}

Calculate mode from the following series : {:("Size",1,2,3,4,5,6,7,8,9,10,),("Frequency",8,6,10,12,20,12,5,3,2,4,):}

Find out median of the following series : {:("Size",15,20,25,30,35,40),("Frequency",10,15,25,5,5,20):}

Calculate mode of the following sercies: {:("Class Interval",10-19,20-29,30-39,40-49,50-59,60-69,70-79),("Frequency"," "10," "12," "18," "30," "16," "6," "8):}

Calculate the median from the following data : {:("Size",10,12,14,16,18,20,22),("Frequency",2,5,12,20,10,7,3):}

Estimate the mode of the following data from the histogram. {:("Class Interval",0-10,10-20,20-30,30-40,40-50,50-60,60-70,70-80),("Frequency",8,10,15,16,20,13,14,12):}

The mode of the following distribution is {:("Class interval :",1-5,6-10,11-15,16-20,21-25),("Frequency :" ,4,7,10,8,6):}