निम्न आँकड़ोसे मध्यिका ज्ञात कीजिए |{:(अंक कम ,10,20,30,40,50,60,70,80),(विद्यार्थियों की संख्या ...

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

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

In a school, 3/8 of the number of students are girls and the rest are boys, One -third of the number of boys are below 10 years and 2/3 of the number of girls are also below 10 years. If the number of students of age 10 Or more years is 260, then the number of boys in the school is: किसी विद्यालय में छात्रों की संख्या का 3/8 भाग लड़कियाँ और शेष लड़के है| लड़को की संख्या का एक तिहाई 10 वर्ष से कम है और लड़कियों की संख्या का 2/3 भी 10 वर्ष से कम है| यदि 10 वर्ष या उससे अधिक आयु वाले छात्रों की संख्या 260 है, तो विद्यालय में लड़को की संख्या ज्ञात कीजिए |

The following table gives distributionn of marks secured by some stidents : {:("Wege Rate (Rs.)",10-20,20-30,30-40,40-50,50-60,60-70,70-80),("Number of Students"," "42," "38," "120," "84," "48," "36," "31):} Calculate the median marks secured by the students.

Calculate median of the following series : {:("Wage Rate (Rs.) (less than)",10,20,30,40,50,60,70,80),("Number of Waorkers",15,35,60,84,96,127,198,250):}

For the following data the value of Q_(1) + Q_(3) - Q_(2), is {:("Age in years" ,:,20,30,40,50,60,70,80),("No. of members" ,:,3,61,132,153,140,51,3):}

Find the standard deviation for the following data: 10, 20, 30, 40, 50, 60, 70, 80, 90

Caculate the median and mode from the following data : {:("Marks",0-10,10-20,20-30,30-40,40-50,50-60,60-70,70-80),("Number of Students"," "2," "18," "30," "45," "35," "20," "6," "3):}

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):}