बारम्बारता बंटनका समान्तर मध्य ज्ञात कीजिए {:( वर्ग अन्तराल : ,25-35,35-45,45-55,55-65,65-75),(...

Find mode :90,55,67,55,75,75,40,35,55,95

50 students of economics , secured the following marks in an examination : {:("Marks",20-25,25-30,30-35,35-40,40-45,45-50,50-55,55-60,60-65,65-70),("Students"," "6," "3," "7," "4," "6," "4," "2," "8," "3," "7):} Caculate median.

Find out median wage rate from the following data - set : {:("Wage Rate (Rs.)",5-15,15-25,25-35,35-45,45-55,55-65),("Number of Workers"," "4," "6," "10," "5," "3," "2):}

Calculate the median from the following data: Rent (in Rs.): 15-25 25-35 35-45 45-55 55-65 65-75 75-85 85-95 No. of Houses: 8 10 15 25 40 20 15 7

Find the mean of the following frequency distributions: Class interval: 25-35 35-45 45-55 55-65 65-75 Frequency: 6 10 8 12 4

Given the following data , find out median : {:("Age",20-25,25-30,30-35,35-40,40-45,45-50,50-55,55-60),("Number of Students"," "50," "70," "100," "180," "150," "120," "70," "60):}

The age distribution of 400 persons in a colony having median age 32 is given below: {:("Age (in years) :", 20-25,25-30,30-35,35-40,40-45,45-50),("Frequency :", 110,x,75,55,y,30):} Then, x - y is

Calculate the mean marks from the following data: {:("Marks",20-25,25-30,30-35,35-40,40-45,45-50,50-55),("No. of Students"," "10," "12," "8," "20," "11," "4," "5):}