Find the average of `:(a) 85, 95, 80, 86, 84`

Find the range of the series : 75, 85, 95, 105, 115, 125.

Find the range of the series : (i)75,85,95,105,115,125 (ii)15,18,13,16,14,13,14,19,21

In each of the following questions, one term in the number series is wrong. Find out the wrong term. 89, 78, 86, 80, 85, 82, 83 1)83 2) 82 3) 86 4) 78

Find the average of following numbers. 75,64,70,66,85 and 48

The marks (out of 100) obtained by a group of students in a science test are 85, 76, 90, 85, 39, 48, 56, 95, 81 and 75. Find the: Highest and the lowest marks obtained by the students.

The marks (out of 100) obtained by a group of students in a science test are 85, 76, 90, 85, 39, 48, 56, 95, 81 and 75. Find the: Mean makrs obtained by the group.

The marks (out of 100) obtained by a group of students in a science test are 85, 76, 90, 85, 39, 48, 56, 95, 81 and 75. Find the: Range of the marks obtained.