17, 9.5, 10.5, 22, 89, ?

17, 9, 10, 22, 92, ?

3, 4, 9, 22.5, 67.5, 202.5, 810 (a) 4 (b) 9 (c) 22.5 (d) 67.5 (e) 202.5

3, 8, 10, 15, 17, 22, 24, ?, ?

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 ?

Find the variance and standard deviation for the following distribution: X:, 4.5, 14.5, 24.5, 34.5, 44.5, 54.5, 64.5 f: , 1, 5, 12, 22, 17, 9, 4

Find the variance and standard deviation for the following distribution: X:, 4.5, 14.5, 24.5, 34.5, 44.5, 54.5, 64.5 f: , 1, 5, 12, 22, 17, 9, 4

Find the variance and standard deviation for the following distribution: X:, 4.5, 14.5, 24.5, 34.5, 44.5, 54.5, 64.5 f: , 1, 5, 12, 22, 17, 9, 4

Find the mode of the following data 10, 5, 20, 25, 10, 13, 17, 13, 22, 13

1, 5, 5, 9, 7, 11, 11, 15, 12, 17