Find the mean for the frequency distribution. {:(class,0-10, 10-20, 20-30, 30-40, 40-50),(frequency,5,8...

Find the mean of the following frequency distributions: Class interval: 0-10 10-20 20-30 30-40 40-50 Frequency: 9 12 15 10 14

Consider the following frequency destribution : {:("Class interval",0-10,10-20,20-30,30-40,40-50),("Frequency",14,x,27,y,15):} If the total of the frequencies is 100 and mode is 25, then which one of the following is correct?

The median class in the following frequency distribution is {:("Class interval :",0-10,10-20,20-30,30-40,40-50),("Frequency :",12,13,25,20,10):}

Find the mean of the following frequency distribution: Class-interval: 0-10 10-20 20-30 30-40 40-50 No. of workers f: 7 10 15 8 10

Construct a histogram for the frequency distribution below: {:("Class Interval",10-20,20-30,30-40,40-50,50-60),("Frequency",6,3,8,4,7):}

Find the mean deviation about arithmetic mean of the following frequency distribution.Marks 0-10,10-20,20-30,30-40,40-50 No.of Students 5,8,15,16,6

Calculate arithmetic mean of the following frequency distribution: {:("Class","less than 10",10-20,20-30,30-40,40-50,50-60,"more than 60"),("Frequency"," "5," "12," "18," "22," "6," "4," "3):}

Calculate mean, variance and standard deviation of the following frequency distribution: Class 1-10 10-20 20-30 30-40 40-50 0-60 Frequency: 11 29 18 4 5 3

Find the mean of the following frequency distribution: Classes: 0-20 20-40 40-60 60-80 80-100 Frequency: 15 18 21 29 17