बारम्बारता बटन का बहुलक ज्ञात कीजिए |
`{:(" वर्ग अन्तराल :",10-15,15-20,20-25,25-30,30-35,35-40),(" बारम्बारता : "," "30," "45," "75," "35," "25," "15):}`

The marks obtained by 100 students of a school are given below. {:("Marks",0-5,5-10,10-15,15-20,20-25,25-30,30-35,35-40),("No . of Students"," "4," "6," "10," "10," "25," "22," "18," "5):} Find out Q_(1),Q_(3),D_(6)and P_(95) .

Determine median value of the following series using graphic method : {:("Marks",0-5,5-10,10-15,15-20,20-25,25-30,30-35,35-40),("Number of students"," "4," "6," "10," "10," "22," "25," "18," "5):}

Find out mode from the following data : {:("Class Interval",5-10,10-15,15-20,20-25,25-30,30-35,35-40),("Number of Childern"," "4," "5," "3," "2," "6," "7," "3):}

Caculate the mode from the following data : {:("Wages (Rs.)",0-5,5-10,10-15,15-20,20-25,25-30,30-35),("Number of Workers"," "3," "7," "15," "30," "20," "10," "5):}

Draw a cumulative frequency curve (ogive) for each of the following distributions : {:("Class interval ", 10-15, 15-20, 20-25, 25-30, 30-35, 35-40),("Frequency " ," "10, " " 15, " " 17, " " 12, " " 10, " " 8):}

The following table gives the marks obtained by some students. Calculate the median marks obtained by the students. {:("Marks",0-5,5-10,10-15,15-20,20-25,25-30,30-35,35-40,40-45),("Number of Students"," "6," "12," "17," "30," "10," "10," "8," "5," "2):}

Calculate the median from the following data - set : {:("Size",10-15,15-17.5,17.5-20,20-30,30-35,35-40,40-50),("Frequency"," "10," "15," "17," "25," "28," "30," "40):}

The mean of the following frequency distribution of 125 observations is 22.12 . Find the missing frequencies {:(" Class ",0-4,5-9,10-14,15-19,20-24,25-29,30-34,35-39,40-44),("Frequency "," "3," "8," "12," "-," "35," "21," "-," "6," "2):}

Calculate mode of the following sercies : {:("Class Interval",0-5,5-10,10-15,15-20,20-25,25-30,30-35),("Frequency"," "1," "2," "10," "4," "10," "9," "2):}

Calculate the median from the following series : {:("Age (Years)",55-60,50-55,45-50,40-45,35-40,30-35,25-30,20-25),("Number of Students"," " 7," "13," "10," "15," "30," "33," "28," "14):}