लघु विधि द्वारा माध्य , प्रसरण तथा मानक विचलन ज्ञात कीजिए :
`{:("ऊँचाई ( सेमी )",70-75,75-80,80-85,85-90,90-95,95-100,100-105,105-110,110-115),("बच्चों की संख्या"," "3," "4," "7," "7," "15," "9," "6," "6," "3 ):}`

Calculate mode from the following data : {:("Class Interval",30-40,40-50,50-60,60-70,70-80,80-90,90-100),("Frequency"," "3," "4," "6," "10," "6," "4," "3):}

Find the median of the following data: CLASS ; 0-10 , 10-20 , 20-30 , 30-40 , 40-50 , 50-60 , 60-70 , 70-80 , 80-90 , 90-100 FREQUENCY ; 5 ,3 , 4 , 3 , 3 , 4 , 7 , 9 , 7 , 8

The weight (in grams) of 50 oranges, picked at random from a basket of oranges are given below: 35, 45, 55, 50, 30, 110, 95, 40, 70, 100, 60, 80, 85, 60, 52, 95, 98, 35, 47, 45, 105, 90, 30, 50, 75, 95, 85, 80, 35, 45, 40, 50, 60, 65, 55, 45, 30, 90, 115, 65, 60, 40, 100, 55, 75, 110, 85, 95, 55, 50.construct a grouped frequency distribution table

The weights in grams of 50 oranges picked at random from a consignment are as follows: 131, 113, 82, 75, 204, 81, 84, 118, 104, 110, 80, 107, 111, 141, 136, 123, 90, 78, 90, 115, 110, 98, 106, 99, 107, 84, 76, 186, 82, 100, 109, 128, 115, 107, 115, 119, 93, 187, 139, 129, 130, 68, 195, 123, 125, 111, 92, 86, 70, 126

The table given below shows the percent-age of literate people in 6 cities . This table also shows the ratio of males to females among literate people . {:("City","%of literate people ","Males : Females"),(" " 1," "80," "4:5),(" "2," "85," "7 :4),(" "3," "78," "3 : 2),(" "4," "63," "1 : 1),(" "5," "92," "9 : 7 ),(" "6 ," "58," "2 : 3):} % of literate people of any city = (Literate people of the city / Total population of the city ) xx 100 Total population of city 6 is 200000 and the total population of city 2 is 220000 . What is the respective ratio of literate males of city 2 and literate females of city 6 ?

The table given below shows the percent-age of literate people in 6 cities . This table also shows the ratio of males to females among literate people . {:("City","%of literate people ","Males : Females"),(" " 1," "80," "4:5),(" "2," "85," "7 :4),(" "3," "78," "3 : 2),(" "4," "63," "1 : 1),(" "5," "92," "9 : 7 ),(" "6 ," "58," "2 : 3):} % of literate people of any city = (Literate people of the city / Total population of the city ) xx 100 If the total population of city 4 is 600000, then how many literate people are there in city 4 ?

The table given below shows the percent-age of literate people in 6 cities . This table also shows the ratio of males to females among literate people . {:("City","%of literate people ","Males : Females"),(" " 1," "80," "4:5),(" "2," "85," "7 :4),(" "3," "78," "3 : 2),(" "4," "63," "1 : 1),(" "5," "92," "9 : 7 ),(" "6 ," "58," "2 : 3):} % of literate people of any city = (Literate people of the city / Total population of the city ) xx 100 If there are 259210 literate females in city 5, what is the total population of city 5 ?

The following is the distribution of weights (in kg) of 50 persons: Marks:, 50-55, 55-60, 60-65, 65-70, 70-75, 75-80, 80-85, 85-90 No. of Person, 12, 8, 5, 4, 5, 7, 6, 3 Draw a histogram for the above data.

Find the median of the following data: class : 0-10 , frequency :5 , 10-20 , 3 , 20-30 , 4 , 30-40 , 3 , 40-50 , 3, 50-60 , 4, 60-70 , 7 , 70-80 , 9 , 80-90 , 7 , 90-100 , 8 ,