निम्न आंकड़ोंकासमान्तर माध्य ज्ञात करो। {:(वर्ग ,0-20, 20-40, 40-60, 60-80,80-100),(f_(i),2,5,15,...

5, 10, 20, 40, 80, ?

Determine the modal class for the frequency distribution given below is: {:("Class interval",0-20,20-40,40-60,60-80,80-100),("Number of workers",15,18,21,29,17):}

Range of data : 20,40,30,60,80,100,10,70 is

Find the mean of the data given in the following table. {:("Class",0-20,20-40,40-60,60-80,80-100),("Frequency"," "6," "4," "5," "7," "3):}

Range of data: 20,40,30,60,80,100,10,70 is:

Caculate mode of the following data : {:("Marks",0-5,5-10,10-20,20-40,40-60,60-80,80-90,90-100),("Number of Students"," "5," "7," "9," "25" "," "30," "24," "8," "6):}

For the given distribution, draw the less than and greater than cumulative frequency curves. {:("Class Interval",0-10,10-20,20-30,30-40,40-50,50-60,60-70,70-80),("Frequency",5,3,7,2,14,9,15,10):}

The following table given the marks scored by 50 students in a 100 marks test of Mathematics. {:("Marks",0-20,20-40,40-60,60-80),("No of "3,12,18,10,7),("students",,,,):} A student is selected randomly from the class. Find the probability that the selected student.

Obtain the mean , median and mode of the following data : {:("Marks",0-10,10-20,20-30,30-40,40-50,50-60,60-70,70-80),("Number of Students"," "5," "7," "15," "25," "20," "15," "8," "5):}

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):}