38, 17, 20, 8, 19, 35, 45, 15, 34, 14 की माध्यिका ज्ञात कीजिये |

17, 19, 22, 27, 34, 45, ….

20,20, 19, 16, 17, 13, 14, 11 ?, ?

The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4-8 (excluding 8 and including 4).

Mode of the data 15, 14, 19, 20, 14, 15, 1 6, 14, 15, 18, 14, 19, 15, 17, 15 is

The mode of given data 15, 14, 19, 20, 14, 15, 16, 14, 15, 18, 14, 19, 15, 17 and 15 is

Themodeofthedata 15, 14, 19,20, 14, 15, 16, l4, 15, 18, 14, 19, 15, 17, 15 is 15. If last observation is changed to 14, then the new mode is

Construct a grouped frequency table with class intervals 0-5, 5 -10 and so on for the following marks obtained in Biology (out of 50) by a group of 35 students in an examination : 0, 5, 6, 7, 10, 12, 14, 15, 20, 22, 25, 26, 27, 8, 11, 17, 3, 6, 9, 17, 19, 21, 22, 29, 31, 35,37, 40, 42, 45, 49, 4, 50, 16 and 20.: What is the range of the data ?

Construct a grouped frequency table with class intervals 0-5, 5 -10 and so on for the following marks obtained in Biology (out of 50) by a group of 35 students in an examination : 0, 5, 6, 7, 10, 12, 14, 15, 20, 22, 25, 26, 27, 8, 11, 17, 3, 6, 9, 17, 19, 21, 22, 29, 31, 35,37, 40, 42, 45, 49, 4, 50, 16 and 20.: Which group contains the maximum number of students ?

Construct a frequency distribution for the following series of numbers.2, 3, 4, 6, 7, 8, 9, 9, 11, 12, 12, 13, 13, 13, 14, 14, 14, 15, 16, 17, 18, 18, 19, 20, 20, 21, 22, 24, 24, 25.